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

20687681 (number)

20687681 is an odd 8-digits composite number following 20687680 and preceding 20687682. In scientific notation, it is written as 2.0687681 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 17657280 positive integers (up to 20687681) that are relatively prime to 20687681.

Interesting facts

20687681 has 8 divisors, whose sum is 23743104
The reverse of 20687681 is 18678602
Previous prime number is 241

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-seven thousand six hundred eighty-one

Notation

Scientific notation	2.0687681 × 10^7
Engineering notation	2.0687681 × 10^6

Prime Factorization of 20687681

Prime Factorization 7 × 241 × 12263

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20687681	Product of the distinct prime numbers

The prime factorization of 20687681 is 7 × 241 × 12263. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 5, 95, 99, 790, 778, 6222, 5406, 57377, 28115, 982619, 657891, 9810739, 8670247, 92550765, 43584608, 24683654, 326263780, 8696641508, 5508263590

Basic calculations (n = 20687681)

Multiplication

n×y

n×2	41375362
n×3	62063043
n×4	82750724
n×5	103438405

Division

n÷y

n÷2	10343840.5
n÷3	6895893.6666667
n÷3	5171920.25
n÷5	4137536.2

Exponentiation

n^y

n²	427980145157761
n³	8.8539167173575E+21
n⁴	1.8316700464926E+29
n⁵	3.7893005619094E+36

Nth Root

^y√n

²√n	4548.371246941
³√n	274.51785931847
⁴√n	67.4416136146
⁵√n	29.049747520682

Divisors of 20687681

1, 7, 241, 1687, 12263, 85841, 2955383, 20687681

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	-20687680	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 20687681 can be divided by 8 positive divisors. The sum of these divisors (counting 20687681) is 1, the average is 0.125.

Base conversion 20687681

Base	System	Value
2	Binary	1001110111010101101000001
3	Ternary	1102221001011102
4	Quaternary	1032322231001
5	Quinary	20244001211
6	Senary	2015224145
8	Octal	116725501
10	Decimal	20687681
12	Duodecimal	6b18055
16	Hexadecimal	13bab41
20	Vigesimal	695j41
36	Base36	cbept

Cryptographic Hash Functions

md5	20cdf1faa4f556f358218d2b9268e935
sha1	6cb1e6d8cc6eb7afa9309348e9aade0c5500bab5
sha256	a01971c7e45c024e8258f76fece5aa885abde3b3e26090a21468f253eb482a8e
sha512	a9026d0175c9e57cfec9d55511c4f40b2442bcfb1d39dee249003a44512ffe9654b4961661a9ee65908547a5078ff97576674205901da9fb6794a345cbbe870b
ripemd-160	d59ff1e331581524a34466e25205d6bd1a32073a

20687681 as geometric shapes

Circle

Radius = n

Diameter	41375362
Circumference	129984533.29882
Area	1.3445392799099E+15

Sphere

Radius = n

Volume	3.7087199619661E+22
Surface area	5.3781571196397E+15
Circumference	129984533.29882

Square

Length = n

Perimeter	82750724
Area	427980145157761
Diagonal	29256799.044248

Cube

Length = n

Surface area	2567880870946566
Volume	8.8539167173575E+21
Space diagonal	35832114.582777

Equilateral Triangle

Length = n

Perimeter	62063043
Area	1.8532083901099E+14
Altitude	17916057.291389

Triangular Pyramid

Length = n

Surface area	1.8532083901099E+14
Volume	1.0434440918174E+21
Height	9752266.3480827