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

20681681 (number)

20681681 is an odd 8-digits composite number following 20681680 and preceding 20681682. In scientific notation, it is written as 2.0681681 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors. There are 20013600 positive integers (up to 20681681) that are relatively prime to 20681681.

Interesting facts

20681681 has 6 divisors, whose sum is 21371346
The reverse of 20681681 is 18618602
Previous prime number is 31

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

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

Notation

Scientific notation	2.0681681 × 10^7
Engineering notation	2.0681681 × 10^6

Prime Factorization of 20681681

Prime Factorization 31 × 31 × 21521

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	667151	Product of the distinct prime numbers

The prime factorization of 20681681 is 31 × 31 × 21521. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 2, 58, 79, 167, 327, 5452, 8155, 96300, 82549, 17679, 972525, 8778804, 423791, 79790704, 88073781, 797434871, 363231776, 5001728740, 9877164766

Basic calculations (n = 20681681)

Multiplication

n×y

n×2	41363362
n×3	62045043
n×4	82726724
n×5	103408405

Division

n÷y

n÷2	10340840.5
n÷3	6893893.6666667
n÷3	5170420.25
n÷5	4136336.2

Exponentiation

n^y

n²	427731928985761
n³	8.8462153087982E+21
n⁴	1.8295460307388E+29
n⁵	3.7838087382556E+36

Nth Root

^y√n

²√n	4547.7116223437
³√n	274.49131749362
⁴√n	67.436723099093
⁵√n	29.048062279024

Divisors of 20681681

1, 31, 961, 21521, 667151, 20681681

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20681680	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20681681 can be divided by 6 positive divisors. The sum of these divisors (counting 20681681) is 1, the average is 0.16666666666667.

Base conversion 20681681

Base	System	Value
2	Binary	1001110111001001111010001
3	Ternary	1102220201221012
4	Quaternary	1032321033101
5	Quinary	20243303211
6	Senary	2015140305
8	Octal	116711721
10	Decimal	20681681
12	Duodecimal	6b14695
16	Hexadecimal	13b93d1
20	Vigesimal	695441
36	Base36	cba35

Cryptographic Hash Functions

md5	123124dd38d941a30a5b16b83abbb121
sha1	74de8e45a755b8108d484dce0aaa6eeb9b586b1d
sha256	00aa379b205de83533fb0add09caa752191e56d717a5eacb6048effd877c50da
sha512	476d75dd8ee3a9b76fff0cfbd19925cfc8b51d76d064e17df27bc793fea1f480923144b7a719a6995a48214a0af652abd4737e67fead5dd0890bd6ee3253496d
ripemd-160	4cd746909ac854f8393bf326e9b4bd466382187d

20681681 as geometric shapes

Circle

Radius = n

Diameter	41363362
Circumference	129946834.18698
Area	1.3437594858075E+15

Sphere

Radius = n

Volume	3.7054940034925E+22
Surface area	5.3750379432298E+15
Circumference	129946834.18698

Square

Length = n

Perimeter	82726724
Area	427731928985761
Diagonal	29248313.762874

Cube

Length = n

Surface area	2566391573914566
Volume	8.8462153087982E+21
Space diagonal	35821722.277932

Equilateral Triangle

Length = n

Perimeter	62045043
Area	1.852133582557E+14
Altitude	17910861.138966

Triangular Pyramid

Length = n

Surface area	1.852133582557E+14
Volume	1.0425364721146E+21
Height	9749437.920958