21017908 (number)

21017908 is an even 8-digits composite number following 21017907 and preceding 21017909. In scientific notation, it is written as 2.1017908 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors. There are 10468472 positive integers (up to 21017908) that are relatively prime to 21017908.

Interesting facts

Basic properties

Name

Name twenty-one million seventeen thousand nine hundred eight

Notation

Scientific notation 2.1017908 × 10^7
Engineering notation 2.1017908 × 10^6

Prime Factorization of 21017908

Prime Factorization 2 × 2 × 263 × 19979

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10508954
Product of the distinct prime numbers

The prime factorization of 21017908 is 2 × 2 × 263 × 19979. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 6, 7, 12, 954, 469, 8298, 3151, 84506, 62672, 322835, 889132, 8759367, 3709563, 63124588, 23673784, 147544757, 948805009, 3644710629, 6521785076

Basic calculations (n = 21017908)

Multiplication

n×y
n×2 42035816
n×3 63053724
n×4 84071632
n×5 105089540

Division

n÷y
n÷2 10508954
n÷3 7005969.3333333
n÷3 5254477
n÷5 4203581.6

Exponentiation

ny
n2 441752456696464
n3 9.2847124936203E+21
n4 1.9514523299736E+29
n5 4.1015445537771E+36

Nth Root

y√n
2√n 4584.5292015648
3√n 275.970818871
4√n 67.709151534817
5√n 29.141902265119

Divisors of 21017908

1, 2, 4, 263, 526, 1052, 19979, 39958, 79916, 5254477, 10508954, 21017908

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 -21017907
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 21017908 can be divided by 12 positive divisors. The sum of these divisors (counting 21017908) is 1, the average is 0.083333333333333.

Base conversion 21017908

Base System Value
2 Binary 1010000001011010100110100
3 Ternary 1110112211011001
4 Quaternary 1100023110310
5 Quinary 20340033113
6 Senary 2030253044
8 Octal 120132464
10 Decimal 21017908
12 Duodecimal 7057184
16 Hexadecimal 140b534
20 Vigesimal 6b74f8
36 Base36 cihis

Cryptographic Hash Functions

md5 48887790cf9abc69aa74f59272f099b5
sha1 dcd5fe1f50950f1e7a6f2f3212eb4e8043f5781e
sha256 9ffad6aa3bb3d0e3166067f7d93f6e293499e562918428697a6c76e38d77736c
sha512 dcd96f398683c19f8381668de5a1c13bf507dcbb0378dbad2afad2ed324e5f761390ce5c4f372657a1a5d20fe28dd2aab1da61132907a9091e3c9418f525a4fe
ripemd-160 b5c9749f967e26083c3dde97f8e7942965bc348f

21017908 as geometric shapes

Circle

Radius = n
Diameter 42035816
Circumference 132059410.73325
Area 1.3878062726629E+15

Sphere

Radius = n
Volume 3.8891712747534E+22
Surface area 5.5512250906514E+15
Circumference 132059410.73325

Square

Length = n
Perimeter 84071632
Area 441752456696464
Diagonal 29723810.54631

Cube

Length = n
Surface area 2650514740178784
Volume 9.2847124936203E+21
Space diagonal 36404084.524808

Equilateral Triangle

Length = n
Perimeter 63053724
Area 1.9128442484166E+14
Altitude 18202042.262404

Triangular Pyramid

Length = n
Surface area 1.9128442484166E+14
Volume 1.0942138609344E+21
Height 9907936.84877