Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

20821431 (number)

20821431 is an odd 8-digits composite number following 20821430 and preceding 20821432. In scientific notation, it is written as 2.0821431 × 10^7. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 13880952 positive integers (up to 20821431) that are relatively prime to 20821431.

Interesting facts

20821431 has 4 divisors, whose sum is 27761912
The reverse of 20821431 is 13412802
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

Name	twenty million eight hundred twenty-one thousand four hundred thirty-one

Notation

Scientific notation	2.0821431 × 10^7
Engineering notation	2.0821431 × 10^6

Prime Factorization of 20821431

Prime Factorization 3 × 6940477

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20821431	Product of the distinct prime numbers

The prime factorization of 20821431 is 3 × 6940477. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 7, 66, 44, 989, 979, 5628, 1660, 81138, 90587, 870588, 942803, 4735020, 659096, 16765166, 73660342, 520647129, 760789786, 1436374144, 2355342289

Basic calculations (n = 20821431)

Multiplication

n×y

n×2	41642862
n×3	62464293
n×4	83285724
n×5	104107155

Division

n÷y

n÷2	10410715.5
n÷3	6940477
n÷3	5205357.75
n÷5	4164286.2

Exponentiation

n^y

n²	433531988887761
n³	9.0267563929193E+21
n⁴	1.8794998538898E+29
n⁵	3.9133876522276E+36

Nth Root

^y√n

²√n	4563.0506243083
³√n	275.10819324063
⁴√n	67.550356211557
⁵√n	29.087213243084

Divisors of 20821431

1, 3, 6940477, 20821431

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	-20821430	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 20821431 can be divided by 4 positive divisors. The sum of these divisors (counting 20821431) is 1, the average is 0.25.

Base conversion 20821431

Base	System	Value
2	Binary	1001111011011010110110111
3	Ternary	1110011211122010
4	Quaternary	1033123112313
5	Quinary	20312241211
6	Senary	2022135303
8	Octal	117332667
10	Decimal	20821431
12	Duodecimal	6b81533
16	Hexadecimal	13db5b7
20	Vigesimal	6a2dbb
36	Base36	ce9x3

Cryptographic Hash Functions

md5	c7ceaede760a3076c887009f01aec092
sha1	d963e2a32aede610be50f95bd4e5183786539885
sha256	ef35c9abf3a83199ba27af8aa62f730f3c9c7869d9506f1e29de026736441699
sha512	c5ac16aae200c19c07fadd09d8480e01b47febe1647af170f80d6416cf5b72c09201a80a8b6de69c9e7613a1d80849374553494d6595460cff4223bbf06e3f12
ripemd-160	63ebdaa7ff9b66bdcb5072cec35c26ece0d73e54

20821431 as geometric shapes

Circle

Radius = n

Diameter	41642862
Circumference	130824909.33365
Area	1.361980911386E+15

Sphere

Radius = n

Volume	3.7811188759653E+22
Surface area	5.4479236455438E+15
Circumference	130824909.33365

Square

Length = n

Perimeter	83285724
Area	433531988887761
Diagonal	29445950.108216

Cube

Length = n

Surface area	2601191933326566
Volume	9.0267563929193E+21
Space diagonal	36063776.37829

Equilateral Triangle

Length = n

Perimeter	62464293
Area	1.87724857865E+14
Altitude	18031888.189145

Triangular Pyramid

Length = n

Surface area	1.87724857865E+14
Volume	1.0638134429254E+21
Height	9815316.7027385