20856621 (number)

20856621 is an odd 8-digits composite number following 20856620 and preceding 20856622. In scientific notation, it is written as 2.0856621 × 10^7. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 13904412 positive integers (up to 20856621) that are relatively prime to 20856621.

Interesting facts

Basic properties

Name

Name twenty million eight hundred fifty-six thousand six hundred twenty-one

Notation

Scientific notation 2.0856621 × 10^7
Engineering notation 2.0856621 × 10^6

Prime Factorization of 20856621

Prime Factorization 3 × 6952207

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20856621
Product of the distinct prime numbers

The prime factorization of 20856621 is 3 × 6952207. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20856621)

Multiplication

n×y
n×2 41713242
n×3 62569863
n×4 83426484
n×5 104283105

Division

n÷y
n÷2 10428310.5
n÷3 6952207
n÷3 5214155.25
n÷5 4171324.2

Exponentiation

ny
n2 434998639537641
n3 9.0726017603522E+21
n4 1.892238163996E+29
n5 3.94656942282E+36

Nth Root

y√n
2√n 4566.9049694514
3√n 275.26309147179
4√n 67.578879610803
5√n 29.097038578916

Divisors of 20856621

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20856620
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20856621 can be divided by 4 positive divisors. The sum of these divisors (counting 20856621) is 1, the average is 0.25.

Base conversion 20856621

Base System Value
2 Binary 1001111100011111100101101
3 Ternary 1110020121220110
4 Quaternary 1033203330231
5 Quinary 20314402441
6 Senary 2023010233
8 Octal 117437455
10 Decimal 20856621
12 Duodecimal 6b99979
16 Hexadecimal 13e3f2d
20 Vigesimal 6a71b1
36 Base36 cf12l

Cryptographic Hash Functions

md5 5c657f2c339b4d6e373cd951d5e75018
sha1 24cea8d2d321074a4ffc749c286aa82c324465cb
sha256 b88c65369c942d0e3d980c6572a5529cc25afe6fdfa7f80cc2a5b7a4c0d5c917
sha512 22a694f5fff6a2c7c3229e4610e5dd917450a61a52b38d27b25b1f30b1d2101e6e6ee86de3bffa0a1eb2b0c4d972296720489fa667e890192c090d3d43647669
ripemd-160 e66892036e7ff455ef464a3fb451345cbb319113

20856621 as geometric shapes

Circle

Radius = n
Diameter 41713242
Circumference 131046014.62461
Area 1.366588530293E+15

Sphere

Radius = n
Volume 3.8003225385691E+22
Surface area 5.466354121172E+15
Circumference 131046014.62461

Square

Length = n
Perimeter 83426484
Area 434998639537641
Diagonal 29495716.283476

Cube

Length = n
Surface area 2609991837225846
Volume 9.0726017603522E+21
Space diagonal 36124727.246208

Equilateral Triangle

Length = n
Perimeter 62569863
Area 1.8835993622563E+14
Altitude 18062363.623104

Triangular Pyramid

Length = n
Surface area 1.8835993622563E+14
Volume 1.0692163712917E+21
Height 9831905.4278252