12957981 (number)

12957981 is an odd 8-digits composite number following 12957980 and preceding 12957982. In scientific notation, it is written as 1.2957981 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 8149680 positive integers (up to 12957981) that are relatively prime to 12957981.

Interesting facts

Basic properties

Name

Name twelve million nine hundred fifty-seven thousand nine hundred eighty-one

Notation

Scientific notation 1.2957981 × 10^7
Engineering notation 1.2957981 × 10^6

Prime Factorization of 12957981

Prime Factorization 3 × 19 × 463 × 491

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 12957981
Product of the distinct prime numbers

The prime factorization of 12957981 is 3 × 19 × 463 × 491. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 63, 97, 279, 653, 8492, 9890, 58430, 31912, 47586, 572497, 313929, 5348989, 61045137, 74357535, 488660925, 680593557, 4174707690, 2988756555

Basic calculations (n = 12957981)

Multiplication

n×y
n×2 25915962
n×3 38873943
n×4 51831924
n×5 64789905

Division

n÷y
n÷2 6478990.5
n÷3 4319327
n÷3 3239495.25
n÷5 2591596.2

Exponentiation

ny
n2 167909271596361
n3 2.1757651510695E+21
n4 2.8193523488021E+28
n5 3.6533114168082E+35

Nth Root

y√n
2√n 3599.7195724112
3√n 234.87986012406
4√n 59.997663057916
5√n 26.454981840949

Divisors of 12957981

1, 3, 19, 57, 463, 491, 1389, 1473, 8797, 9329, 26391, 27987, 227333, 681999, 4319327, 12957981

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12957980
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12957981 can be divided by 16 positive divisors. The sum of these divisors (counting 12957981) is 1, the average is 0.0625.

Base conversion 12957981

Base System Value
2 Binary 110001011011100100011101
3 Ternary 220101100000020
4 Quaternary 301123210131
5 Quinary 11304123411
6 Senary 1141422353
8 Octal 61334435
10 Decimal 12957981
12 Duodecimal 440a9b9
16 Hexadecimal c5b91d
20 Vigesimal 40jej1
36 Base36 7pqfx

Cryptographic Hash Functions

md5 c43198b50c2da409cfae7af58104f624
sha1 a44ed6da82d7f2396f9cab9bb79850af0f38a629
sha256 062557584a36fc0c88f61c7ea6b73ba908088a31ea3f420f72b0c8b65821e3eb
sha512 f6452f69045d94be7a9d8f56ccd1176f16693602d4c5e2bc3382c009826989776613822e4fee09f97f7d827b0a9eab7a3ef7c91fec7ff34728d44e6066681c94
ripemd-160 b1cc418aece1fafc9c9ebc5106e0a128b1eace05

12957981 as geometric shapes

Circle

Radius = n
Diameter 25915962
Circumference 81417395.829912
Area 5.2750253411674E+14

Sphere

Radius = n
Volume 9.1138237527154E+21
Surface area 2.110010136467E+15
Circumference 81417395.829912

Square

Length = n
Perimeter 51831924
Area 167909271596361
Diagonal 18325352.471173

Cube

Length = n
Surface area 1007455629578166
Volume 2.1757651510695E+21
Space diagonal 22443881.455512

Equilateral Triangle

Length = n
Perimeter 38873943
Area 72706847366695
Altitude 11221940.727756

Triangular Pyramid

Length = n
Surface area 72706847366695
Volume 2.5641638209843E+20
Height 6108450.8237243