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

20121281 (number)

20121281 is an odd 8-digits prime number following 20121280 and preceding 20121282. In scientific notation, it is written as 2.0121281 × 10^7. The sum of its digits is 17. It has a total of 1 prime factors and 2 positive divisors. There are 20121280 positive integers (up to 20121281) that are relatively prime to 20121281.

Interesting facts

20121281 has 2 divisors, whose sum is 20121282
The reverse of 20121281 is 18212102
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8

Name

Name	twenty million one hundred twenty-one thousand two hundred eighty-one

Notation

Scientific notation	2.0121281 × 10^7
Engineering notation	2.0121281 × 10^6

Prime Factorization of 20121281

Prime Factorization 20121281

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20121281	Product of the distinct prime numbers

The prime factorization of 20121281 is 20121281. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 2, 56, 90, 29, 517, 1774, 2412, 15407, 92228, 366775, 771532, 2123286, 6738517, 53662991, 13551568, 743340079, 161391910, 6480173968, 9344222424

Basic calculations (n = 20121281)

Multiplication

n×y

n×2	40242562
n×3	60363843
n×4	80485124
n×5	100606405

Division

n÷y

n÷2	10060640.5
n÷3	6707093.6666667
n÷3	5030320.25
n÷5	4024256.2

Exponentiation

n^y

n²	404865949080961
n³	8.1464215287897E+21
n⁴	1.6391643672523E+29
n⁵	3.298208683867E+36

Nth Root

^y√n

²√n	4485.6750885458
³√n	271.98933511385
⁴√n	66.975182631672
⁵√n	28.88890795998

Divisors of 20121281

1, 20121281

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20121282	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10060641	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4485.6752000117	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999006028	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20121281 can be divided by 2 positive divisors. The sum of these divisors (counting 20121281) is 20121282, the average is 10060641.

Base conversion 20121281

Base	System	Value
2	Binary	1001100110000011011000001
3	Ternary	1101212021012122
4	Quaternary	1030300123001
5	Quinary	20122340111
6	Senary	1555134025
8	Octal	114603301
10	Decimal	20121281
12	Duodecimal	68a4315
16	Hexadecimal	13306c1
20	Vigesimal	65f341
36	Base36	bz9oh

Cryptographic Hash Functions

md5	ce7d79c99e93e2d7bc6322662feea218
sha1	e3480b6ec982700220aa6cb3cf2c78e88f90683b
sha256	35d01a782e6518e33ef882c7d32887bff0f56d9a508f5581cb230700952a057b
sha512	1b36db4ad77cd1151695940f781c6e405226aae5932fa88bb81344d8f2d1557741191979b13e3aa78154e4736f85544ca0aae5ba5e13a86d2fbcb4e2905ee874
ripemd-160	79424d18ed884b7b30b9b1525e1e58b0ea6ed1da

20121281 as geometric shapes

Circle

Radius = n

Diameter	40242562
Circumference	126425737.14083
Area	1.2719238913214E+15

Sphere

Radius = n

Volume	3.4123650703855E+22
Surface area	5.0876955652856E+15
Circumference	126425737.14083

Square

Length = n

Perimeter	80485124
Area	404865949080961
Diagonal	28455788.48252

Cube

Length = n

Surface area	2429195694485766
Volume	8.1464215287897E+21
Space diagonal	34851081.00537

Equilateral Triangle

Length = n

Perimeter	60363843
Area	1.753120985157E+14
Altitude	17425540.502685

Triangular Pyramid

Length = n

Surface area	1.753120985157E+14
Volume	9.6006498423521E+20
Height	9485262.8275067