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

20121491 (number)

20121491 is an odd 8-digits composite number following 20121490 and preceding 20121492. In scientific notation, it is written as 2.0121491 × 10^7. The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors. There are 18573672 positive integers (up to 20121491) that are relatively prime to 20121491.

Interesting facts

20121491 has 4 divisors, whose sum is 21669312
The reverse of 20121491 is 19412102
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2

Name

Name	twenty million one hundred twenty-one thousand four hundred ninety-one

Notation

Scientific notation	2.0121491 × 10^7
Engineering notation	2.0121491 × 10^6

Prime Factorization of 20121491

Prime Factorization 13 × 1547807

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20121491	Product of the distinct prime numbers

The prime factorization of 20121491 is 13 × 1547807. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 7, 35, 95, 531, 185, 1304, 3987, 20648, 54351, 374870, 105152, 8665384, 7752894, 51681316, 1056644, 795922953, 775773022, 3182952167, 4443414049

Basic calculations (n = 20121491)

Multiplication

n×y

n×2	40242982
n×3	60364473
n×4	80485964
n×5	100607455

Division

n÷y

n÷2	10060745.5
n÷3	6707163.6666667
n÷3	5030372.75
n÷5	4024298.2

Exponentiation

n^y

n²	404874400063081
n³	8.1466765969997E+21
n⁴	1.6392327982644E+29
n⁵	3.2983807997182E+36

Nth Root

^y√n

²√n	4485.6984963325
³√n	271.99028133528
⁴√n	66.975357381148
⁵√n	28.888968260766

Divisors of 20121491

1, 13, 1547807, 20121491

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20121490	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20121491 can be divided by 4 positive divisors. The sum of these divisors (counting 20121491) is 1, the average is 0.25.

Base conversion 20121491

Base	System	Value
2	Binary	1001100110000011110010011
3	Ternary	1101212021111102
4	Quaternary	1030300132103
5	Quinary	20122341431
6	Senary	1555135015
8	Octal	114603623
10	Decimal	20121491
12	Duodecimal	68a446b
16	Hexadecimal	1330793
20	Vigesimal	65f3eb
36	Base36	bz9ub

Cryptographic Hash Functions

md5	ce30fda5d34e8bc28ea49c6b3e92e2a9
sha1	62b4544e599fa7717287fe1da2cd8c2db1e3b6bf
sha256	e3f7f8fb5d3a7682f5b04f720cc9cd4833f388c742096e4bcd33816efc337368
sha512	4167c7e887bf69dcbf489280ecc617894c3a67a75aa7b541a3e9067c9586b5b46189fbef1993a09fa6b82f8b4f9670c7ee91960341fdc34433316f77c04560a4
ripemd-160	8c6ab4509673b03cae3080615aa267a0c0dd5715

20121491 as geometric shapes

Circle

Radius = n

Diameter	40242982
Circumference	126427056.60975
Area	1.2719504408648E+15

Sphere

Radius = n

Volume	3.4124719131075E+22
Surface area	5.087801763459E+15
Circumference	126427056.60975

Square

Length = n

Perimeter	80485964
Area	404874400063081
Diagonal	28456085.467368

Cube

Length = n

Surface area	2429246400378486
Volume	8.1466765969997E+21
Space diagonal	34851444.73604

Equilateral Triangle

Length = n

Perimeter	60364473
Area	1.7531575789831E+14
Altitude	17425722.36802

Triangular Pyramid

Length = n

Surface area	1.7531575789831E+14
Volume	9.6009504431204E+20
Height	9485361.8224561