12991639 (number)

12991639 is an odd 8-digits composite number following 12991638 and preceding 12991640. In scientific notation, it is written as 1.2991639 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 12960360 positive integers (up to 12991639) that are relatively prime to 12991639.

Interesting facts

Basic properties

Name

Name twelve million nine hundred ninety-one thousand six hundred thirty-nine

Notation

Scientific notation 1.2991639 × 10^7
Engineering notation 1.2991639 × 10^6

Prime Factorization of 12991639

Prime Factorization 421 × 30859

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 12991639
Product of the distinct prime numbers

The prime factorization of 12991639 is 421 × 30859. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 4, 91, 8, 778, 500, 2060, 9528, 41287, 26659, 768255, 54220, 1801636, 3111200, 52640726, 69916447, 16491153, 20109108, 2732613026, 8961350691

Basic calculations (n = 12991639)

Multiplication

n×y
n×2 25983278
n×3 38974917
n×4 51966556
n×5 64958195

Division

n÷y
n÷2 6495819.5
n÷3 4330546.3333333
n÷3 3247909.75
n÷5 2598327.8

Exponentiation

ny
n2 168782683906321
n3 2.192763698762E+21
n4 2.8487594386621E+28
n5 3.7010054224941E+35

Nth Root

y√n
2√n 3604.3916268907
3√n 235.08304896303
4√n 60.036585736455
5√n 26.468710801959

Divisors of 12991639

1, 421, 30859, 12991639

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12991638
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12991639 can be divided by 4 positive divisors. The sum of these divisors (counting 12991639) is 1, the average is 0.25.

Base conversion 12991639

Base System Value
2 Binary 110001100011110010010111
3 Ternary 220110001011211
4 Quaternary 301203302113
5 Quinary 11311213024
6 Senary 1142242251
8 Octal 61436227
10 Decimal 12991639
12 Duodecimal 4426387
16 Hexadecimal c63c97
20 Vigesimal 413j1j
36 Base36 7qgev

Cryptographic Hash Functions

md5 77cb16b3674a301ff69eceb190160711
sha1 3a28006e4dc847c9277f5ddaec1f644654d49692
sha256 1a4804bc2e5897205632f7ac415e01c79a0fac85997f586af43e1b436ef180f6
sha512 df49a298556256c5dc6b149ec57f7346293f6a31edfea31f5a1c28d310919d4917031175cb88efd51a38989744aeac1a87c9fb6785f5f776fded459ed9272ccc
ripemd-160 8ed4ae9ae5d82a451c963e7e6a0e48d594e6cebb

12991639 as geometric shapes

Circle

Radius = n
Diameter 25983278
Circumference 81628875.280981
Area 5.3024643981327E+14

Sphere

Radius = n
Volume 9.1850271027856E+21
Surface area 2.1209857592531E+15
Circumference 81628875.280981

Square

Length = n
Perimeter 51966556
Area 168782683906321
Diagonal 18372952.071255

Cube

Length = n
Surface area 1012696103437926
Volume 2.192763698762E+21
Space diagonal 22502178.821593

Equilateral Triangle

Length = n
Perimeter 38974917
Area 73085045990896
Altitude 11251089.410797

Triangular Pyramid

Length = n
Surface area 73085045990896
Volume 2.5841968015572E+20
Height 6124317.3570851