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

20681687 (number)

20681687 is an odd 8-digits composite number following 20681686 and preceding 20681688. In scientific notation, it is written as 2.0681687 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 18989568 positive integers (up to 20681687) that are relatively prime to 20681687.

Interesting facts

20681687 has 8 divisors, whose sum is 22390704
The reverse of 20681687 is 78618602
Previous prime number is 193

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

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

Notation

Scientific notation	2.0681687 × 10^7
Engineering notation	2.0681687 × 10^6

Prime Factorization of 20681687

Prime Factorization 13 × 193 × 8243

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20681687	Product of the distinct prime numbers

The prime factorization of 20681687 is 13 × 193 × 8243. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 1, 61, 96, 237, 920, 1522, 1964, 61144, 64974, 927926, 515652, 9697305, 1911394, 7834616, 7703468, 456482568, 760011208, 1923099834, 3899906546

Basic calculations (n = 20681687)

Multiplication

n×y

n×2	41363374
n×3	62045061
n×4	82726748
n×5	103408435

Division

n÷y

n÷2	10340843.5
n÷3	6893895.6666667
n÷3	5170421.75
n÷5	4136337.4

Exponentiation

n^y

n²	427732177165969
n³	8.8462230079751E+21
n⁴	1.8295481538314E+29
n⁵	3.7838142268969E+36

Nth Root

^y√n

²√n	4547.7122820161
³√n	274.49134403801
⁴√n	67.43672799014
⁵√n	29.048063964461

Divisors of 20681687

1, 13, 193, 2509, 8243, 107159, 1590899, 20681687

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	-20681686	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 20681687 can be divided by 8 positive divisors. The sum of these divisors (counting 20681687) is 1, the average is 0.125.

Base conversion 20681687

Base	System	Value
2	Binary	1001110111001001111010111
3	Ternary	1102220201221102
4	Quaternary	1032321033113
5	Quinary	20243303222
6	Senary	2015140315
8	Octal	116711727
10	Decimal	20681687
12	Duodecimal	6b1469b
16	Hexadecimal	13b93d7
20	Vigesimal	695447
36	Base36	cba3b

Cryptographic Hash Functions

md5	b9eb4010d50b2f7b10a03e962d1e3efb
sha1	17a122d9bf9e95219bf2856d24aa1cd45d24a96e
sha256	96c0ce7601e5c42d9e2e279691a1fd13b54bc97e25330180d23da57a59b7b851
sha512	2ee97649b0be23bb28954947354ec33854665fae16e9877006a17ba216ca17cc217ee546a11390922dd87bf7cde99ebd7e0f5bd7736315911cc28db918ac35f8
ripemd-160	7c205728240c601e01bd786fda591cfa459f3b0d

20681687 as geometric shapes

Circle

Radius = n

Diameter	41363374
Circumference	129946871.88609
Area	1.3437602654886E+15

Sphere

Radius = n

Volume	3.7054972285162E+22
Surface area	5.3750410619543E+15
Circumference	129946871.88609

Square

Length = n

Perimeter	82726748
Area	427732177165969
Diagonal	29248322.248155

Cube

Length = n

Surface area	2566393062995814
Volume	8.8462230079751E+21
Space diagonal	35821732.670237

Equilateral Triangle

Length = n

Perimeter	62045061
Area	1.8521346572088E+14
Altitude	17910866.335118

Triangular Pyramid

Length = n

Surface area	1.8521346572088E+14
Volume	1.0425373794713E+21
Height	9749440.7493851