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

20991631 (number)

20991631 is an odd 8-digits composite number following 20991630 and preceding 20991632. In scientific notation, it is written as 2.0991631 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 20479600 positive integers (up to 20991631) that are relatively prime to 20991631.

Interesting facts

20991631 has 4 divisors, whose sum is 21503664
The reverse of 20991631 is 13619902
Previous prime number is 41

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	twenty million nine hundred ninety-one thousand six hundred thirty-one

Notation

Scientific notation	2.0991631 × 10^7
Engineering notation	2.0991631 × 10^6

Prime Factorization of 20991631

Prime Factorization 41 × 511991

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20991631	Product of the distinct prime numbers

The prime factorization of 20991631 is 41 × 511991. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 9, 72, 91, 521, 146, 3863, 8425, 61331, 80867, 533891, 764754, 1500199, 2100901, 48412227, 89528978, 940124656, 537265631, 1011209391, 1678029713

Basic calculations (n = 20991631)

Multiplication

n×y

n×2	41983262
n×3	62974893
n×4	83966524
n×5	104958155

Division

n÷y

n÷2	10495815.5
n÷3	6997210.3333333
n÷3	5247907.75
n÷5	4198326.2

Exponentiation

n^y

n²	440648572040161
n³	9.249932224944E+21
n⁴	1.9417116404103E+29
n⁵	4.0759694263898E+36

Nth Root

^y√n

²√n	4581.6624711997
³√n	275.85576286932
⁴√n	67.687978779099
⁵√n	29.134611863034

Divisors of 20991631

1, 41, 511991, 20991631

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	-20991630	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 20991631 can be divided by 4 positive divisors. The sum of these divisors (counting 20991631) is 1, the average is 0.25.

Base conversion 20991631

Base	System	Value
2	Binary	1010000000100111010001111
3	Ternary	1110111111002211
4	Quaternary	1100010322033
5	Quinary	20333213011
6	Senary	2025531251
8	Octal	120047217
10	Decimal	20991631
12	Duodecimal	7043b27
16	Hexadecimal	1404e8f
20	Vigesimal	6b3j1b
36	Base36	chx8v

Cryptographic Hash Functions

md5	b4b9072374b2e66b4ce48ff5c7a99ede
sha1	351e31fb059194eeaee188f249e485c282583419
sha256	0bfb8fc3aeba6451ee557161034cb37cadef55f74fe6468e81dc3d92323ed52b
sha512	9867fa1f0524e33aaadbbd003d74354bd928e1c1f177e23f23e1986be27ab194206ffeb77a9c8a3e8d42ec109ed12e2eeae20e9de480758494ffb9c6ac6f73fe
ripemd-160	fb8d97cfb62a4a6635ffe2d03ecd8c13ad075585

20991631 as geometric shapes

Circle

Radius = n

Diameter	41983262
Circumference	131894307.47294
Area	1.3843383167362E+15

Sphere

Radius = n

Volume	3.8746025498783E+22
Surface area	5.5373532669448E+15
Circumference	131894307.47294

Square

Length = n

Perimeter	83966524
Area	440648572040161
Diagonal	29686649.256531

Cube

Length = n

Surface area	2643891432240966
Volume	9.249932224944E+21
Space diagonal	36358571.425738

Equilateral Triangle

Length = n

Perimeter	62974893
Area	1.9080642876406E+14
Altitude	18179285.712869

Triangular Pyramid

Length = n

Surface area	1.9080642876406E+14
Volume	1.0901149669623E+21
Height	9895549.7521772