21007908 (number)

21007908 is an even 8-digits composite number following 21007907 and preceding 21007909. In scientific notation, it is written as 2.1007908 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 48 positive divisors. There are 6652800 positive integers (up to 21007908) that are relatively prime to 21007908.

Interesting facts

Basic properties

Name

Name twenty-one million seven thousand nine hundred eight

Notation

Scientific notation 2.1007908 × 10^7
Engineering notation 2.1007908 × 10^6

Prime Factorization of 21007908

Prime Factorization 2 × 2 × 9 × 43 × 331 × 41

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10503954
Product of the distinct prime numbers

The prime factorization of 21007908 is 2 × 2 × 9 × 43 × 331 × 41. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 3, 10, 54, 592, 745, 9601, 9154, 94912, 10264, 133707, 964603, 5699649, 7125711, 27623024, 17170352, 786586398, 275385184, 3301561788, 4767005368

Basic calculations (n = 21007908)

Multiplication

n×y
n×2 42015816
n×3 63023724
n×4 84031632
n×5 105039540

Division

n÷y
n÷2 10503954
n÷3 7002636
n÷3 5251977
n÷5 4201581.6

Exponentiation

ny
n2 441332198536464
n3 9.2714662242918E+21
n4 1.9477410946503E+29
n5 4.0917965724233E+36

Nth Root

y√n
2√n 4583.4384472795
3√n 275.92704435928
4√n 67.701096352123
5√n 29.139128682709

Divisors of 21007908

1, 2, 4, 9, 18, 36, 41, 43, 82, 86, 164, 172, 331, 369, 387, 662, 738, 774, 1324, 1476, 1548, 1763, 2979, 3526, 5958, 7052, 11916, 13571, 14233, 15867, 27142, 28466, 31734, 54284, 56932, 63468, 122139, 128097, 244278, 256194, 488556, 512388, 583553, 1167106, 2334212, 5251977, 10503954, 21007908

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21007907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21007908 can be divided by 48 positive divisors. The sum of these divisors (counting 21007908) is 1, the average is 0.020833333333333.

Base conversion 21007908

Base System Value
2 Binary 1010000001000111000100100
3 Ternary 1110112022102200
4 Quaternary 1100020320210
5 Quinary 20334223113
6 Senary 2030134500
8 Octal 120107044
10 Decimal 21007908
12 Duodecimal 7051430
16 Hexadecimal 1408e24
20 Vigesimal 6b5jf8
36 Base36 ci9t0

Cryptographic Hash Functions

md5 f95edd8942bb8057cc400e97994c0053
sha1 d4fc35c8022f4d0ecc252ef65259ff615c4519e2
sha256 7f9a22d059c385c4c60124f7a4e874069650b19370fc22f96848a52b97832fe7
sha512 b08f47e24598334ab99014ebd51be30e59242748ef799137bb4a7446ddb75701197c769668a0cbd67cf77acfe4a9ba9618b4098c1ce718345db60486b99fd1a1
ripemd-160 2099134d758966b54b0e5a816453a40e66eb3f7c

21007908 as geometric shapes

Circle

Radius = n
Diameter 42015816
Circumference 131996578.88018
Area 1.3864859927148E+15

Sphere

Radius = n
Volume 3.8836226904321E+22
Surface area 5.5459439708591E+15
Circumference 131996578.88018

Square

Length = n
Perimeter 84031632
Area 441332198536464
Diagonal 29709668.410686

Cube

Length = n
Surface area 2647993191218784
Volume 9.2714662242918E+21
Space diagonal 36386764.016733

Equilateral Triangle

Length = n
Perimeter 63023724
Area 1.9110244772031E+14
Altitude 18193382.008366

Triangular Pyramid

Length = n
Surface area 1.9110244772031E+14
Volume 1.0926527731231E+21
Height 9903222.8035621