21031908 (number)

21031908 is an even 8-digits composite number following 21031907 and preceding 21031909. In scientific notation, it is written as 2.1031908 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 12 positive divisors. There are 7010632 positive integers (up to 21031908) that are relatively prime to 21031908.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand nine hundred eight

Notation

Scientific notation 2.1031908 × 10^7
Engineering notation 2.1031908 × 10^6

Prime Factorization of 21031908

Prime Factorization 2 × 2 × 3 × 1752659

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10515954
Product of the distinct prime numbers

The prime factorization of 21031908 is 2 × 2 × 3 × 1752659. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 7, 44, 22, 379, 464, 6466, 1970, 1442, 49550, 400821, 548548, 2477639, 8615083, 93023737, 59319165, 438963492, 274546443, 7265151439, 7494924831

Basic calculations (n = 21031908)

Multiplication

n×y
n×2 42063816
n×3 63095724
n×4 84127632
n×5 105159540

Division

n÷y
n÷2 10515954
n÷3 7010636
n÷3 5257977
n÷5 4206381.6

Exponentiation

ny
n2 442341154120464
n3 9.3032784580754E+21
n4 1.9566569662862E+29
n5 4.1152229302491E+36

Nth Root

y√n
2√n 4586.0558217274
3√n 276.03207986705
4√n 67.720423962992
5√n 29.145783507452

Divisors of 21031908

1, 2, 3, 4, 6, 12, 1752659, 3505318, 5257977, 7010636, 10515954, 21031908

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031908 can be divided by 12 positive divisors. The sum of these divisors (counting 21031908) is 1, the average is 0.083333333333333.

Base conversion 21031908

Base System Value
2 Binary 1010000001110101111100100
3 Ternary 1110120112100120
4 Quaternary 1100032233210
5 Quinary 20341010113
6 Senary 2030441540
8 Octal 120165744
10 Decimal 21031908
12 Duodecimal 70632b0
16 Hexadecimal 140ebe4
20 Vigesimal 6b8jf8
36 Base36 cisbo

Cryptographic Hash Functions

md5 05d2b1bac9090075d0da4bfbd443de46
sha1 9ff0953e91e8a9fdd8b4f87b66c1f438299f59ed
sha256 e3a8544da7de1068507686784eb55220273e13d6bca726e705c17f7af75c49ed
sha512 d870ec8bd6c46ec6b6287091b926784679c19ea706bf002d02e01062b884d94b01c032588740d472efd7c82eda38cf876632bebcea87f0ff543eda8d55c7f48a
ripemd-160 bc7a8c1d69af89f43bdfe5500b49cd86d70c2fb3

21031908 as geometric shapes

Circle

Radius = n
Diameter 42063816
Circumference 132147375.32755
Area 1.3896557201653E+15

Sphere

Radius = n
Volume 3.8969481677587E+22
Surface area 5.5586228806611E+15
Circumference 132147375.32755

Square

Length = n
Perimeter 84127632
Area 442341154120464
Diagonal 29743609.536183

Cube

Length = n
Surface area 2654046924722784
Volume 9.3032784580754E+21
Space diagonal 36428333.236114

Equilateral Triangle

Length = n
Perimeter 63095724
Area 1.9153933830382E+14
Altitude 18214166.618057

Triangular Pyramid

Length = n
Surface area 1.9153933830382E+14
Volume 1.0964018808286E+21
Height 9914536.5120611