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

20121287 (number)

20121287 is an odd 8-digits prime number following 20121286 and preceding 20121288. In scientific notation, it is written as 2.0121287 × 10^7. The sum of its digits is 23. It has a total of 1 prime factors and 2 positive divisors. There are 20121286 positive integers (up to 20121287) that are relatively prime to 20121287.

Interesting facts

20121287 has 2 divisors, whose sum is 20121288
The reverse of 20121287 is 78212102
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5

Name

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

Notation

Scientific notation	2.0121287 × 10^7
Engineering notation	2.0121287 × 10^6

Prime Factorization of 20121287

Prime Factorization 20121287

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20121287	Product of the distinct prime numbers

The prime factorization of 20121287 is 20121287. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 10, 72, 28, 940, 544, 312, 8229, 29333, 76934, 17415, 637433, 9388388, 2618109, 40658625, 55077087, 430988663, 864006314, 8333377509, 1690677757

Basic calculations (n = 20121287)

Multiplication

n×y

n×2	40242574
n×3	60363861
n×4	80485148
n×5	100606435

Division

n÷y

n÷2	10060643.5
n÷3	6707095.6666667
n÷3	5030321.75
n÷5	4024257.4

Exponentiation

n^y

n²	404866190536369
n³	8.146428816379E+21
n⁴	1.6391663223943E+29
n⁵	3.2982136013631E+36

Nth Root

^y√n

²√n	4485.6757573414
³√n	271.98936214884
⁴√n	66.975187624533
⁵√n	28.888909682866

Divisors of 20121287

1, 20121287

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20121288	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10060644	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4485.6758688073	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 20121287 can be divided by 2 positive divisors. The sum of these divisors (counting 20121287) is 20121288, the average is 10060644.

Base conversion 20121287

Base	System	Value
2	Binary	1001100110000011011000111
3	Ternary	1101212021012212
4	Quaternary	1030300123013
5	Quinary	20122340122
6	Senary	1555134035
8	Octal	114603307
10	Decimal	20121287
12	Duodecimal	68a431b
16	Hexadecimal	13306c7
20	Vigesimal	65f347
36	Base36	bz9on

Cryptographic Hash Functions

md5	c0e92ce9bfd0b3834eadca8652ac0c12
sha1	8cfdb239900d1aa8ce8f2fb60f0039d0516c15bf
sha256	13117f212fef667064691169b1048d9e830b9928a1ec270c5f9ca0a138b6e029
sha512	de4defe7365a27b883faf98192f87f0659da204a85f29dfb54b46e740a342bdf862637ac2955e0e7bbb386c46f40cd81a40e7a3e3129be8540c8d02b29be93b8
ripemd-160	8da48878c33244070cd316430178436bbc672343

20121287 as geometric shapes

Circle

Radius = n

Diameter	40242574
Circumference	126425774.83994
Area	1.2719246498759E+15

Sphere

Radius = n

Volume	3.4123681230038E+22
Surface area	5.0876985995038E+15
Circumference	126425774.83994

Square

Length = n

Perimeter	80485148
Area	404866190536369
Diagonal	28455796.967801

Cube

Length = n

Surface area	2429197143218214
Volume	8.146428816379E+21
Space diagonal	34851091.397675

Equilateral Triangle

Length = n

Perimeter	60363861
Area	1.7531220306896E+14
Altitude	17425545.698838

Triangular Pyramid

Length = n

Surface area	1.7531220306896E+14
Volume	9.6006584308584E+20
Height	9485265.6559338