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

20218991 (number)

20218991 is an odd 8-digits composite number following 20218990 and preceding 20218992. In scientific notation, it is written as 2.0218991 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 18661656 positive integers (up to 20218991) that are relatively prime to 20218991.

Interesting facts

20218991 has 8 divisors, whose sum is 21905520
The reverse of 20218991 is 19981202
Previous prime number is 13

Basic properties

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

Name

Name	twenty million two hundred eighteen thousand nine hundred ninety-one

Notation

Scientific notation	2.0218991 × 10^7
Engineering notation	2.0218991 × 10^6

Prime Factorization of 20218991

Prime Factorization 169 × 13 × 9203

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20218991	Product of the distinct prime numbers

The prime factorization of 20218991 is 169 × 13 × 9203. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 2, 8, 32, 843, 491, 6295, 8310, 62262, 85118, 722155, 96406, 7065894, 7574432, 13308554, 31616671, 579553688, 237991875, 2574546072, 5511867742

Basic calculations (n = 20218991)

Multiplication

n×y

n×2	40437982
n×3	60656973
n×4	80875964
n×5	101094955

Division

n÷y

n÷2	10109495.5
n÷3	6739663.6666667
n÷3	5054747.75
n÷5	4043798.2

Exponentiation

n^y

n²	408807597058081
n³	8.265677125649E+21
n⁴	1.671236514124E+29
n⁵	3.3790716037945E+36

Nth Root

^y√n

²√n	4496.553235535
³√n	272.42888922469
⁴√n	67.056343738195
⁵√n	28.916910830946

Divisors of 20218991

1, 13, 169, 2197, 9203, 119639, 1555307, 20218991

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	-20218990	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 20218991 can be divided by 8 positive divisors. The sum of these divisors (counting 20218991) is 1, the average is 0.125.

Base conversion 20218991

Base	System	Value
2	Binary	1001101001000010001101111
3	Ternary	1102001020020112
4	Quaternary	1031020101233
5	Quinary	20134001431
6	Senary	2001210235
8	Octal	115102157
10	Decimal	20218991
12	Duodecimal	693097b
16	Hexadecimal	134846f
20	Vigesimal	66779b
36	Base36	c1d2n

Cryptographic Hash Functions

md5	ef6a965ca7e19adfa19d6e23761e73f6
sha1	7acca758ee52a3d40f82a870a33ec9444d610c93
sha256	f036fd9eafae79a0021e0bdc1ac4b3bcd70c38941d922287c64079fa051ea94e
sha512	5125a956d45406fb576610d1d5d7cc1b254bf703981b223610fa2e9f1a50b45ffff65fb45af67105935c01b3d9f281dbc3525a68da42d3dd5a745cd4b6e20fde
ripemd-160	bc6e0cef1093bbd39db21b681ed923ca02c4c96d

20218991 as geometric shapes

Circle

Radius = n

Diameter	40437982
Circumference	127039667.1772
Area	1.2843069436494E+15

Sphere

Radius = n

Volume	3.4623187379845E+22
Surface area	5.1372277745975E+15
Circumference	127039667.1772

Square

Length = n

Perimeter	80875964
Area	408807597058081
Diagonal	28593971.2897

Cube

Length = n

Surface area	2452845582348486
Volume	8.265677125649E+21
Space diagonal	35020319.689778

Equilateral Triangle

Length = n

Perimeter	60656973
Area	1.7701888215619E+14
Altitude	17510159.844889

Triangular Pyramid

Length = n

Surface area	1.7701888215619E+14
Volume	9.7411939110749E+20
Height	9531323.7632332