1276990 (number)
1,276,990 (one million two hundred seventysix thousand nine hundred ninety) is an even sevendigits composite number following 1276989 and preceding 1276991. In scientific notation, it is written as 1.27699 × 10^{6}. The sum of its digits is 34. It has a total of 6 prime factors and 64 positive divisors. There are 397,440 positive integers (up to 1276990) that are relatively prime to 1276990.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 7
 Sum of Digits 34
 Digital Root 7
Name
Short name  1 million 276 thousand 990 

Full name  one million two hundred seventysix thousand nine hundred ninety 
Notation
Scientific notation  1.27699 × 10^{6} 

Engineering notation  1.27699 × 10^{6} 
Prime Factorization of 1276990
Prime Factorization 2 × 5 × 11 × 13 × 19 × 47
Composite numberω(n)  Distinct Factors  6  Total number of distinct prime factors 

Ω(n)  Total Factors  6  Total number of prime factors 
rad(n)  Radical  1276990  Product of the distinct prime numbers 
λ(n)  Liouville Lambda  1  Returns the parity of Ω(n), such that λ(n) = (1)^{Ω(n)} 
μ(n)  Mobius Mu  1  Returns:

Λ(n)  Mangoldt function  0  Returns log(p) if n is a power p^{k} of any prime p (for any k >= 1), else returns 0 
The prime factorization of 1,276,990 is 2 × 5 × 11 × 13 × 19 × 47. Since it has a total of 6 prime factors, 1,276,990 is a composite number.
Divisors of 1276990
64 divisors
τ(n)  Total Divisors  64  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  2903040  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  1626050  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  45360  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  1130.0398223072  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  28.15233686067  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 1,276,990 can be divided by 64 positive divisors (out of which 32 are even, and 32 are odd). The sum of these divisors (counting 1,276,990) is 2,903,040, the average is 45,360.
Other Arithmetic Functions (n = 1276990)
φ(n)  Euler Totient  397440  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  4140  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 98161  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  0  The number of ways n can be represented as the sum of 2 squares 
There are 397,440 positive integers (less than 1,276,990) that are coprime with 1,276,990. And there are approximately 98,161 prime numbers less than or equal to 1,276,990.
Divisibility of 1276990
m  2  3  4  5  6  7  8  9 

n mod m  0  1  2  0  4  1  6  7 
The number 1,276,990 is divisible by 2 and 5.
Classification of 1276990
By Arithmetic functions
 Arithmetic
 Abundant
Expressible via specific sums
 Polite
By Shape (2D, noncentered)
 Heptagonal
By Powers
 Square Free
Base conversion (1276990)
Base  System  Value 

2  Binary  100110111110000111110 
3  Ternary  2101212200221 
4  Quaternary  10313300332 
5  Quinary  311330430 
6  Senary  43211554 
8  Octal  4676076 
10  Decimal  1276990 
12  Duodecimal  516bba 
16  Hexadecimal  137c3e 
20  Vigesimal  7jc9a 
36  Base36  rdby 
Basic calculations (n = 1276990)
Multiplication
n×yn×2  2553980 

n×3  3830970 
n×4  5107960 
n×5  6384950 
Division
n÷yn÷2  638495.000 

n÷3  425663.333 
n÷4  319247.500 
n÷5  255398.000 
Exponentiation
n^{y}n^{2}  1630703460100 

n^{3}  2082392011513099000 
n^{4}  2659193774782112292010000 
n^{5}  3395763858459009575773849900000 
Nth Root
^{y}√n^{2}√n  1130.0398223072 

^{3}√n  108.49152956165 
^{4}√n  33.616064943821 
^{5}√n  16.643225567794 
1276990 as geometric shapes
Circle
Radius = nDiameter  2553980 

Circumference  8023564.8054153 
Area  5123006010433.6 
Sphere
Radius = nVolume  8.7227032603515E+18 

Surface area  20492024041734 
Circumference  8023564.8054153 
Square
Length = nPerimeter  5107960 

Area  1630703460100 
Diagonal  1805936.5770148 
Cube
Length = nSurface area  9784220760600 

Volume  2082392011513099000 
Space diagonal  2211811.5607574 
Equilateral Triangle
Length = nPerimeter  3830970 

Area  706115311242.89 
Altitude  1105905.7803787 
Triangular Pyramid
Length = nSurface area  2824461244971.6 

Volume  2.454122520716E+17 
Height  1042657.9688789 
Cryptographic Hash Functions
md5  644810e3f96c13f3d714040c5b9755bb 

sha1  bde65de7015960419b8f8293325a6a5d9a51e3aa 
sha256  a2437ed4a3fd950e07bedf9d32b4aea84fe64584e0ce787b7d3f1bf75898ba1b 
sha512  d0c600f16bae2625daa2b97d8325304a6e8eaed63552fb493ca88d1bd700fa627063dacfe419f3953eb48c1cfaa75986ac53e0b9fd3fab0a25ab974eb87a0eef 
ripemd160  d3ae0f44ff2f964e9cdbbdda9809878221e8285b 