21085810 (number)

21085810 is an even 8-digits composite number following 21085809 and preceding 21085811. In scientific notation, it is written as 2.1085810 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 8367408 positive integers (up to 21085810) that are relatively prime to 21085810.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-five thousand eight hundred ten

Notation

Scientific notation 2.1085810 × 10^7
Engineering notation 2.1085810 × 10^6

Prime Factorization of 21085810

Prime Factorization 2 × 5 × 127 × 16603

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21085810
Product of the distinct prime numbers

The prime factorization of 21085810 is 2 × 5 × 127 × 16603. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 8, 40, 40, 321, 289, 3554, 6903, 21331, 75995, 78893, 541700, 3193166, 7280070, 40493523, 40454618, 157024153, 13982654, 3174004240, 7914729603

Basic calculations (n = 21085810)

Multiplication

n×y
n×2 42171620
n×3 63257430
n×4 84343240
n×5 105429050

Division

n÷y
n÷2 10542905
n÷3 7028603.3333333
n÷3 5271452.5
n÷5 4217162

Exponentiation

ny
n2 444611383356100
n3 9.3749911532839E+21
n4 1.9767928220982E+29
n5 4.1682277856127E+36

Nth Root

y√n
2√n 4591.9287886464
3√n 276.2676899464
4√n 67.763771948191
5√n 29.160707573991

Divisors of 21085810

1, 2, 5, 10, 127, 254, 635, 1270, 16603, 33206, 83015, 166030, 2108581, 4217162, 10542905, 21085810

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21085809
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21085810 can be divided by 16 positive divisors. The sum of these divisors (counting 21085810) is 1, the average is 0.0625.

Base conversion 21085810

Base System Value
2 Binary 1010000011011111001110010
3 Ternary 1110200021021221
4 Quaternary 1100123321302
5 Quinary 20344221220
6 Senary 2031535254
8 Octal 120337162
10 Decimal 21085810
12 Duodecimal 708a52a
16 Hexadecimal 141be72
20 Vigesimal 6bfeaa
36 Base36 cjxwy

Cryptographic Hash Functions

md5 e73ea08ee92faa7a2edcffee9cb96020
sha1 a09882fb5a17ddb01141d657cca7ab641b16216f
sha256 94080af208f6b09a1f3dc9bd2c5da87614a6ef90995b4571094a159078fdb6f6
sha512 9901949a7659486914e91c832df3ce6d394e77d71a2951dead9ff694c29af962d2a1239d817a36b697a378abe5d092683ba62cee4163d87355cf4474bdca6a21
ripemd-160 4329a186e702858e4dd055441bf7f0d2e367a4eb

21085810 as geometric shapes

Circle

Radius = n
Diameter 42171620
Circumference 132486051.58198
Area 1.3967878556539E+15

Sphere

Radius = n
Volume 3.9269871112835E+22
Surface area 5.5871514226157E+15
Circumference 132486051.58198

Square

Length = n
Perimeter 84343240
Area 444611383356100
Diagonal 29819838.475622

Cube

Length = n
Surface area 2667668300136600
Volume 9.3749911532839E+21
Space diagonal 36521694.238744

Equilateral Triangle

Length = n
Perimeter 63257430
Area 1.9252237639906E+14
Altitude 18260847.119372

Triangular Pyramid

Length = n
Surface area 1.9252237639906E+14
Volume 1.1048533030085E+21
Height 9939946.1585407