21085956 (number)

21085956 is an even 8-digits composite number following 21085955 and preceding 21085957. In scientific notation, it is written as 2.1085956 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors. There are 7028640 positive integers (up to 21085956) that are relatively prime to 21085956.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-five thousand nine hundred fifty-six

Notation

Scientific notation 2.1085956 × 10^7
Engineering notation 2.1085956 × 10^6

Prime Factorization of 21085956

Prime Factorization 2 × 2 × 9 × 585721

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10542978
Product of the distinct prime numbers

The prime factorization of 21085956 is 2 × 2 × 9 × 585721. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 4, 30, 38, 976, 46, 3524, 9580, 30695, 730, 693176, 251769, 8036686, 907042, 21699465, 68664343, 248721403, 340655639, 8945927113, 8506824553

Basic calculations (n = 21085956)

Multiplication

n×y
n×2 42171912
n×3 63257868
n×4 84343824
n×5 105429780

Division

n÷y
n÷2 10542978
n÷3 7028652
n÷3 5271489
n÷5 4217191.2

Exponentiation

ny
n2 444617540433936
n3 9.3751858944182E+21
n4 1.9768475726152E+29
n5 4.1683720934871E+36

Nth Root

y√n
2√n 4591.944686078
3√n 276.26832757884
4√n 67.763889248463
5√n 29.160747956139

Divisors of 21085956

1, 2, 4, 9, 18, 36, 585721, 1171442, 2342884, 5271489, 10542978, 21085956

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 -21085955
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 21085956 can be divided by 12 positive divisors. The sum of these divisors (counting 21085956) is 1, the average is 0.083333333333333.

Base conversion 21085956

Base System Value
2 Binary 1010000011011111100000100
3 Ternary 1110200021111100
4 Quaternary 1100123330010
5 Quinary 20344222311
6 Senary 2031540100
8 Octal 120337404
10 Decimal 21085956
12 Duodecimal 708a630
16 Hexadecimal 141bf04
20 Vigesimal 6bfehg
36 Base36 cjy10

Cryptographic Hash Functions

md5 f4c58c85508407e50a676997ff1d552a
sha1 7b7841922089b202c69569562991a6ee3d70986b
sha256 1fe64702a36a6a65e4b061b7a9c439667ae39f35c154cf098912468713c1ba9d
sha512 e5fc1d89617e1230d90c69b54361a5568e4f3962226227eeba2831be0550546b1eefacb027c92a01bc384efe786f91be9593bdd372ed76ec3e273f045526527e
ripemd-160 5d54d7d9945f3efac3f2c2be7a051c1e930214d5

21085956 as geometric shapes

Circle

Radius = n
Diameter 42171912
Circumference 132486968.92704
Area 1.3968071986844E+15

Sphere

Radius = n
Volume 3.927068684259E+22
Surface area 5.5872287947377E+15
Circumference 132486968.92704

Square

Length = n
Perimeter 84343824
Area 444617540433936
Diagonal 29820044.950802

Cube

Length = n
Surface area 2667705242603616
Volume 9.3751858944182E+21
Space diagonal 36521947.118162

Equilateral Triangle

Length = n
Perimeter 63257868
Area 1.9252504249197E+14
Altitude 18260973.559081

Triangular Pyramid

Length = n
Surface area 1.9252504249197E+14
Volume 1.1048762534713E+21
Height 9940014.9836008