20731381 (number)

20731381 is an odd 8-digits composite number following 20731380 and preceding 20731382. In scientific notation, it is written as 2.0731381 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 17737920 positive integers (up to 20731381) that are relatively prime to 20731381.

Interesting facts

Basic properties

Name

Name twenty million seven hundred thirty-one thousand three hundred eighty-one

Notation

Scientific notation 2.0731381 × 10^7
Engineering notation 2.0731381 × 10^6

Prime Factorization of 20731381

Prime Factorization 11 × 17 × 110863

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20731381
Product of the distinct prime numbers

The prime factorization of 20731381 is 11 × 17 × 110863. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20731381)

Multiplication

n×y
n×2 41462762
n×3 62194143
n×4 82925524
n×5 103656905

Division

n÷y
n÷2 10365690.5
n÷3 6910460.3333333
n÷3 5182845.25
n÷5 4146276.2

Exponentiation

ny
n2 429790158167161
n3 8.9101435190137E+21
n4 1.8471958005735E+29
n5 3.829491992329E+36

Nth Root

y√n
2√n 4553.1726301558
3√n 274.71101764285
4√n 67.47720081743
5√n 29.0620099167

Divisors of 20731381

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20731380
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20731381 can be divided by 8 positive divisors. The sum of these divisors (counting 20731381) is 1, the average is 0.125.

Base conversion 20731381

Base System Value
2 Binary 1001111000101010111110101
3 Ternary 1110000021002221
4 Quaternary 1033011113311
5 Quinary 20301401011
6 Senary 2020202341
8 Octal 117052765
10 Decimal 20731381
12 Duodecimal 6b393b1
16 Hexadecimal 13c55f5
20 Vigesimal 69b891
36 Base36 cccfp

Cryptographic Hash Functions

md5 e37aa1ea3e97edff283e9c087b3c932e
sha1 6545c377c1878796fbf91debfbc4face2cff244c
sha256 b227018592bb21306767aed07f861390aef93dd5aa55ddba1164ff2114742c9e
sha512 22d7c29b043a70f025c234a1bcf0d41bfdbfc15167cfcfd7dd7ef86413beddb2a1e8f00f592d2313c8812eb593f1869da85c58f8e7c23049ec8ee5a83d49448d
ripemd-160 827f6cf206f1812629890e3a015cdd0b780f6cc8

20731381 as geometric shapes

Circle

Radius = n
Diameter 41462762
Circumference 130259108.49674
Area 1.3502256034831E+15

Sphere

Radius = n
Volume 3.7322721895685E+22
Surface area 5.4009024139326E+15
Circumference 130259108.49674

Square

Length = n
Perimeter 82925524
Area 429790158167161
Diagonal 29318600.176924

Cube

Length = n
Surface area 2578740949002966
Volume 8.9101435190137E+21
Space diagonal 35907805.203068

Equilateral Triangle

Length = n
Perimeter 62194143
Area 1.8610459763465E+14
Altitude 17953902.601534

Triangular Pyramid

Length = n
Surface area 1.8610459763465E+14
Volume 1.05007048394E+21
Height 9772866.7256413