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

20681491 (number)

20681491 is an odd 8-digits prime number following 20681490 and preceding 20681492. In scientific notation, it is written as 2.0681491 × 10^7. The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors. There are 20681490 positive integers (up to 20681491) that are relatively prime to 20681491.

Interesting facts

20681491 has 2 divisors, whose sum is 20681492
The reverse of 20681491 is 19418602
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	twenty million six hundred eighty-one thousand four hundred ninety-one

Notation

Scientific notation	2.0681491 × 10^7
Engineering notation	2.0681491 × 10^6

Prime Factorization of 20681491

Prime Factorization 20681491

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20681491	Product of the distinct prime numbers

The prime factorization of 20681491 is 20681491. Since it has a total of 1 prime factors.

Most popular turbo-numbers

2, 6, 86, 18, 721, 852, 2772, 5015, 29605, 90311, 38904, 45716, 7985926, 9429416, 30964979, 49929540, 225017056, 504746454, 1156747527, 4793218539

Basic calculations (n = 20681491)

Multiplication

n×y

n×2	41362982
n×3	62044473
n×4	82725964
n×5	103407455

Division

n÷y

n÷2	10340745.5
n÷3	6893830.3333333
n÷3	5170372.75
n÷5	4136298.2

Exponentiation

n^y

n²	427724069983081
n³	8.8459715038385E+21
n⁴	1.8294788004289E+29
n⁵	3.7836349345761E+36

Nth Root

^y√n

²√n	4547.6907326686
³√n	274.49047691865
⁴√n	67.436568215388
⁵√n	29.048008906649

Divisors of 20681491

1, 20681491

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20681492	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10340746	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4547.6908426145	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999032952	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20681491 can be divided by 2 positive divisors. The sum of these divisors (counting 20681491) is 20681492, the average is 10340746.

Base conversion 20681491

Base	System	Value
2	Binary	1001110111001001100010011
3	Ternary	1102220201200011
4	Quaternary	1032321030103
5	Quinary	20243301431
6	Senary	2015135351
8	Octal	116711423
10	Decimal	20681491
12	Duodecimal	6b14557
16	Hexadecimal	13b9313
20	Vigesimal	6953eb
36	Base36	cb9xv

Cryptographic Hash Functions

md5	e9319471cc7a7a921d56c669317bbbe1
sha1	58bdaaa381e1a937daaa84404c12356987993999
sha256	5b1748a7a15278d0b88de9e0fb0afe1e8a73014c1135261a3b5acfb9e2998c0c
sha512	bd8b82dc84bc5a155ee8f66b5b124f002d3fad6f2ec556cb37fac0450f58fa59abcef33e0968cbacbb052e509d8d36770f8845b3c52f76e375d1c646e576a0f8
ripemd-160	5ee7b821bae15b7d82ef2cfb3cac760bb94d4437

20681491 as geometric shapes

Circle

Radius = n

Diameter	41362982
Circumference	129945640.38177
Area	1.3437347960224E+15

Sphere

Radius = n

Volume	3.7053918787098E+22
Surface area	5.3749391840895E+15
Circumference	129945640.38177

Square

Length = n

Perimeter	82725964
Area	427724069983081
Diagonal	29248045.062297

Cube

Length = n

Surface area	2566344419898486
Volume	8.8459715038385E+21
Space diagonal	35821393.188278

Equilateral Triangle

Length = n

Perimeter	62044473
Area	1.8520995520771E+14
Altitude	17910696.594139

Triangular Pyramid

Length = n

Surface area	1.8520995520771E+14
Volume	1.0425077394245E+21
Height	9749348.354099