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

20181431 (number)

20181431 is an odd 8-digits composite number following 20181430 and preceding 20181432. In scientific notation, it is written as 2.0181431 × 10^7. The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors. There are 18892800 positive integers (up to 20181431) that are relatively prime to 20181431.

Interesting facts

20181431 has 8 divisors, whose sum is 21482784
The reverse of 20181431 is 13418102
Previous prime number is 193

Basic properties

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

Name

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

Notation

Scientific notation	2.0181431 × 10^7
Engineering notation	2.0181431 × 10^6

Prime Factorization of 20181431

Prime Factorization 17 × 193 × 6151

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20181431	Product of the distinct prime numbers

The prime factorization of 20181431 is 17 × 193 × 6151. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 10, 27, 62, 362, 152, 9282, 6595, 30059, 71373, 492279, 945861, 6934419, 4392073, 92151156, 51195414, 821940474, 984155278, 2870225023, 4175141106

Basic calculations (n = 20181431)

Multiplication

n×y

n×2	40362862
n×3	60544293
n×4	80725724
n×5	100907155

Division

n÷y

n÷2	10090715.5
n÷3	6727143.6666667
n÷3	5045357.75
n÷5	4036286.2

Exponentiation

n^y

n²	407290157207761
n³	8.2196982046676E+21
n⁴	1.6588527215832E+29
n⁵	3.3478021739794E+36

Nth Root

^y√n

²√n	4492.3747617491
³√n	272.26009129029
⁴√n	67.025180057565
⁵√n	28.906159284271

Divisors of 20181431

1, 17, 193, 3281, 6151, 104567, 1187143, 20181431

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	-20181430	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 20181431 can be divided by 8 positive divisors. The sum of these divisors (counting 20181431) is 1, the average is 0.125.

Base conversion 20181431

Base	System	Value
2	Binary	1001100111111000110110111
3	Ternary	1101222022201102
4	Quaternary	1030333012313
5	Quinary	20131301211
6	Senary	2000320315
8	Octal	114770667
10	Decimal	20181431
12	Duodecimal	691309b
16	Hexadecimal	133f1b7
20	Vigesimal	662dbb
36	Base36	c0k3b

Cryptographic Hash Functions

md5	db2124a71b1eb8abe4ad807c8e63d297
sha1	0049d01aecdb5f3309373e34b7326204a9bb74d0
sha256	04d07f632e3cc4c2e8f108c764a144e345bd45466312c3b4faf578932c7c754b
sha512	c9dffb3fcb9e70bf1ddc82841171c5b70efd1224e4767cb537f3562e7a5926b57e38d453d94b27bc7a3cdca2bda2b8a71e85ad5caed728ba7be0739c3fb5a77e
ripemd-160	5cc6063eb9a5c41e9ac8bcab626c3060b91d395e

20181431 as geometric shapes

Circle

Radius = n

Diameter	40362862
Circumference	126803670.73706
Area	1.2795397657633E+15

Sphere

Radius = n

Volume	3.4430591326012E+22
Surface area	5.1181590630533E+15
Circumference	126803670.73706

Square

Length = n

Perimeter	80725724
Area	407290157207761
Diagonal	28540853.428297

Cube

Length = n

Surface area	2443740943246566
Volume	8.2196982046676E+21
Space diagonal	34955263.861446

Equilateral Triangle

Length = n

Perimeter	60544293
Area	1.7636181142664E+14
Altitude	17477631.930723

Triangular Pyramid

Length = n

Surface area	1.7636181142664E+14
Volume	9.6870072330456E+20
Height	9513617.8094323