21085220 (number)

21085220 is an even 8-digits composite number following 21085219 and preceding 21085221. In scientific notation, it is written as 2.1085220 × 10^7. The sum of its digits is 20. It has a total of 5 prime factors and 24 positive divisors. There are 7785216 positive integers (up to 21085220) that are relatively prime to 21085220.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1085220 × 10^7
Engineering notation 2.1085220 × 10^6

Prime Factorization of 21085220

Prime Factorization 2 × 2 × 5 × 13 × 81097

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10542610
Product of the distinct prime numbers

The prime factorization of 21085220 is 2 × 2 × 5 × 13 × 81097. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 1, 83, 64, 19, 750, 9851, 8274, 52082, 32344, 242693, 831155, 598684, 413669, 1913557, 22296125, 72279789, 336234675, 6506830338, 2078835730

Basic calculations (n = 21085220)

Multiplication

n×y
n×2 42170440
n×3 63255660
n×4 84340880
n×5 105426100

Division

n÷y
n÷2 10542610
n÷3 7028406.6666667
n÷3 5271305
n÷5 4217044

Exponentiation

ny
n2 444586502448400
n3 9.3742042131551E+21
n4 1.976571581593E+29
n5 4.1676446643637E+36

Nth Root

y√n
2√n 4591.8645450405
3√n 276.26511318257
4√n 67.763297920338
5√n 29.16054438358

Divisors of 21085220

1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 81097, 162194, 324388, 405485, 810970, 1054261, 1621940, 2108522, 4217044, 5271305, 10542610, 21085220

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 -21085219
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 21085220 can be divided by 24 positive divisors. The sum of these divisors (counting 21085220) is 1, the average is 0.041666666666667.

Base conversion 21085220

Base System Value
2 Binary 1010000011011110000100100
3 Ternary 1110200020111002
4 Quaternary 1100123300210
5 Quinary 20344211340
6 Senary 2031532432
8 Octal 120336044
10 Decimal 21085220
12 Duodecimal 708a118
16 Hexadecimal 141bc24
20 Vigesimal 6bfd10
36 Base36 cjxgk

Cryptographic Hash Functions

md5 88a6d165c0b7a1f3ef144527157fd05d
sha1 a83944312fab07a92d43bbc3d998dc190946ec19
sha256 6d301c31b6de318e5cc9e7bb3b81ce936f43407dee99d3c66cac77fc3411c840
sha512 8ab2aa9ea0bc7e8a9e7e7dff449db23cfa6f7a4975e74801dc3036b6d0d64b5a597c748b5d0c5fa6ceddff24e71e5783ce519bdf66c040ad9db995f2c0576145
ripemd-160 7192288a710670f1f00c9eb0ca2d42760172f28e

21085220 as geometric shapes

Circle

Radius = n
Diameter 42170440
Circumference 132482344.50265
Area 1.3967096899771E+15

Sphere

Radius = n
Volume 3.9266574785731E+22
Surface area 5.5868387599083E+15
Circumference 132482344.50265

Square

Length = n
Perimeter 84340880
Area 444586502448400
Diagonal 29819004.08962

Cube

Length = n
Surface area 2667519014690400
Volume 9.3742042131551E+21
Space diagonal 36520672.328767

Equilateral Triangle

Length = n
Perimeter 63255660
Area 1.9251160264999E+14
Altitude 18260336.164384

Triangular Pyramid

Length = n
Surface area 1.9251160264999E+14
Volume 1.1047605612249E+21
Height 9939668.0298735