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

20991015 (number)

20991015 is an odd 8-digits composite number following 20991014 and preceding 20991016. In scientific notation, it is written as 2.0991015 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 11007360 positive integers (up to 20991015) that are relatively prime to 20991015.

Interesting facts

20991015 has 8 divisors, whose sum is 21501600
The reverse of 20991015 is 51019902
Previous prime number is 61

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	twenty million nine hundred ninety-one thousand fifteen

Notation

Scientific notation	2.0991015 × 10^7
Engineering notation	2.0991015 × 10^6

Prime Factorization of 20991015

Prime Factorization 135 × 61 × 2549

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20991015	Product of the distinct prime numbers

The prime factorization of 20991015 is 135 × 61 × 2549. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 4, 3, 47, 767, 676, 1724, 9945, 97772, 10441, 514475, 46561, 2321127, 1679722, 57821777, 67237912, 868876320, 705548118, 2762783617, 8791974882

Basic calculations (n = 20991015)

Multiplication

n×y

n×2	41982030
n×3	62973045
n×4	83964060
n×5	104955075

Division

n÷y

n÷2	10495507.5
n÷3	6997005
n÷3	5247753.75
n÷5	4198203

Exponentiation

n^y

n²	440622710730225
n³	9.2491179302788E+21
n⁴	1.9414837321125E+29
n⁵	4.075371414303E+36

Nth Root

^y√n

²√n	4581.5952461997
³√n	275.85306451122
⁴√n	67.687482197226
⁵√n	29.134440869827

Divisors of 20991015

1, 61, 135, 2549, 8235, 155489, 344115, 20991015

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	-20991014	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 20991015 can be divided by 8 positive divisors. The sum of these divisors (counting 20991015) is 1, the average is 0.125.

Base conversion 20991015

Base	System	Value
2	Binary	1010000000100110000100111
3	Ternary	1110111110021000
4	Quaternary	1100010300213
5	Quinary	20333203030
6	Senary	2025524343
8	Octal	120046047
10	Decimal	20991015
12	Duodecimal	70436b3
16	Hexadecimal	1404c27
20	Vigesimal	6b3haf
36	Base36	chwrr

Cryptographic Hash Functions

md5	e20b03a19d88733e9348265503891684
sha1	92b49dc313ad54d208be6956519babcecf09ad8c
sha256	33e64eaeed9d540faeb8a650de8744671a39b807c7783830d9620855c229844d
sha512	f3217e160940551ec04e13fad8025d025696e5163703164ebb4d462ac1f4e9f503d0c0fe1dce3b8cdf823750bc60548ef71eb016318c7f77aba50257cf74e6c9
ripemd-160	5ac07ca97f1cfc543eea9b9a2ebf2d697ebb64c9

20991015 as geometric shapes

Circle

Radius = n

Diameter	41982030
Circumference	131890437.03079
Area	1.3842570710349E+15

Sphere

Radius = n

Volume	3.8742614589266E+22
Surface area	5.5370282841396E+15
Circumference	131890437.03079

Square

Length = n

Perimeter	83964060
Area	440622710730225
Diagonal	29685778.100977

Cube

Length = n

Surface area	2643736264381350
Volume	9.2491179302788E+21
Space diagonal	36357504.48244

Equilateral Triangle

Length = n

Perimeter	62973045
Area	1.9079523048837E+14
Altitude	18178752.24122

Triangular Pyramid

Length = n

Surface area	1.9079523048837E+14
Volume	1.0900190014157E+21
Height	9895259.3669924