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

18121431 (number)

18121431 is an odd 8-digits composite number following 18121430 and preceding 18121432. In scientific notation, it is written as 1.8121431 × 10^7. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 12080952 positive integers (up to 18121431) that are relatively prime to 18121431.

Interesting facts

18121431 has 4 divisors, whose sum is 24161912
The reverse of 18121431 is 13412181
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

Name	eighteen million one hundred twenty-one thousand four hundred thirty-one

Notation

Scientific notation	1.8121431 × 10^7
Engineering notation	1.8121431 × 10^6

Prime Factorization of 18121431

Prime Factorization 3 × 6040477

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	18121431	Product of the distinct prime numbers

The prime factorization of 18121431 is 3 × 6040477. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 10, 66, 2, 18, 609, 8648, 574, 7225, 85629, 230477, 256516, 1584412, 791583, 59519079, 78498602, 375243194, 811562377, 6829478072, 4103387702

Basic calculations (n = 18121431)

Multiplication

n×y

n×2	36242862
n×3	54364293
n×4	72485724
n×5	90607155

Division

n÷y

n÷2	9060715.5
n÷3	6040477
n÷3	4530357.75
n÷5	3624286.2

Exponentiation

n^y

n²	328386261487761
n³	5.9508289788984E+21
n⁴	1.0783753673391E+29
n⁵	1.9541704811335E+36

Nth Root

^y√n

²√n	4256.9274130528
³√n	262.66215106286
⁴√n	65.245133251858
⁵√n	28.290361562109

Divisors of 18121431

1, 3, 6040477, 18121431

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	-18121430	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 18121431 can be divided by 4 positive divisors. The sum of these divisors (counting 18121431) is 1, the average is 0.25.

Base conversion 18121431

Base	System	Value
2	Binary	1000101001000001011010111
3	Ternary	1021002122221010
4	Quaternary	1011020023113
5	Quinary	14114341211
6	Senary	1444223303
8	Octal	105101327
10	Decimal	18121431
12	Duodecimal	609ab33
16	Hexadecimal	11482d7
20	Vigesimal	5d53bb
36	Base36	asel3

Cryptographic Hash Functions

md5	f7be7c15cd017277634bb40d12875d2a
sha1	f3e02c28d07e29d8a2b2321dfee60acb2244353b
sha256	2856e11c2357aefd55f106c736e6a3e3925bacf80da76f910a0c2b98dccd782f
sha512	5e9ed8fc13c615d60eba09779c2c110752b2fb1f8f9d78c9967307a3740425105846c99095a53a7fa64a693d7f311a9f75a9eac028e381664ab92a745ca7b047
ripemd-160	ad4605bccbdf59ef1e441a314f104076a34a7818

18121431 as geometric shapes

Circle

Radius = n

Diameter	36242862
Circumference	113860309.00427
Area	1.0316558666298E+15

Sphere

Radius = n

Volume	2.4926774137169E+22
Surface area	4.1266234665191E+15
Circumference	113860309.00427

Square

Length = n

Perimeter	72485724
Area	328386261487761
Diagonal	25627573.489808

Cube

Length = n

Surface area	1970317568926566
Volume	5.9508289788984E+21
Space diagonal	31387239.197854

Equilateral Triangle

Length = n

Perimeter	54364293
Area	1.421954223511E+14
Altitude	15693619.598927

Triangular Pyramid

Length = n

Surface area	1.421954223511E+14
Volume	7.0131192077675E+20
Height	8542524.4966027