21085902 (number)

21085902 is an even 8-digits composite number following 21085901 and preceding 21085903. In scientific notation, it is written as 2.1085902 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 7015536 positive integers (up to 21085902) that are relatively prime to 21085902.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-five thousand nine hundred two

Notation

Scientific notation 2.1085902 × 10^7
Engineering notation 2.1085902 × 10^6

Prime Factorization of 21085902

Prime Factorization 2 × 3 × 3 × 947 × 1237

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7028634
Product of the distinct prime numbers

The prime factorization of 21085902 is 2 × 3 × 3 × 947 × 1237. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 10, 1, 6, 255, 104, 6165, 922, 30907, 95175, 948788, 845842, 6433957, 926388, 81824547, 74134392, 458707178, 484671132, 8587354802, 9055665605

Basic calculations (n = 21085902)

Multiplication

n×y
n×2 42171804
n×3 63257706
n×4 84343608
n×5 105429510

Division

n÷y
n÷2 10542951
n÷3 7028634
n÷3 5271475.5
n÷5 4217180.4

Exponentiation

ny
n2 444615263153604
n3 9.3751138665611E+21
n4 1.9768273222915E+29
n5 4.1683187188761E+36

Nth Root

y√n
2√n 4591.9388062125
3√n 276.26809174253
4√n 67.763845863502
5√n 29.160733020302

Divisors of 21085902

1, 2, 3, 6, 9, 18, 947, 1237, 1894, 2474, 2841, 3711, 5682, 7422, 8523, 11133, 17046, 22266, 1171439, 2342878, 3514317, 7028634, 10542951, 21085902

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21085901
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21085902 can be divided by 24 positive divisors. The sum of these divisors (counting 21085902) is 1, the average is 0.041666666666667.

Base conversion 21085902

Base System Value
2 Binary 1010000011011111011001110
3 Ternary 1110200021102100
4 Quaternary 1100123323032
5 Quinary 20344222102
6 Senary 2031535530
8 Octal 120337316
10 Decimal 21085902
12 Duodecimal 708a5a6
16 Hexadecimal 141bece
20 Vigesimal 6bfef2
36 Base36 cjxzi

Cryptographic Hash Functions

md5 64f70f28111f121e7238f63482b2cee0
sha1 221292b990cd295bf7acf384910ca7483d02f8ef
sha256 45106d362bc09a348f75cf52ce68a7ec44af82820be0f417458c94cc926052a4
sha512 948cd6a6f8487c896c028d9f2ebb3f10aa34030ea96e41c8610b567f6c3c01d280a193c0625ccb43b7f2b01fca24a24ef52fdb0c8608d28afa7614f754b50b30
ripemd-160 75c013d3fdc27aa1bce3ed010eda79125072bf29

21085902 as geometric shapes

Circle

Radius = n
Diameter 42171804
Circumference 132486629.63503
Area 1.3968000443973E+15

Sphere

Radius = n
Volume 3.9270385133008E+22
Surface area 5.587200177589E+15
Circumference 132486629.63503

Square

Length = n
Perimeter 84343608
Area 444615263153604
Diagonal 29819968.58327

Cube

Length = n
Surface area 2667691578921624
Volume 9.3751138665611E+21
Space diagonal 36521853.587418

Equilateral Triangle

Length = n
Perimeter 63257706
Area 1.9252405640066E+14
Altitude 18260926.793709

Triangular Pyramid

Length = n
Surface area 1.9252405640066E+14
Volume 1.1048677649069E+21
Height 9939989.5277567