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

81242013 (number)

81242013 is an odd 8-digits composite number following 81242012 and preceding 81242014. In scientific notation, it is written as 8.1242013 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 54110288 positive integers (up to 81242013) that are relatively prime to 81242013.

Interesting facts

81242013 has 8 divisors, whose sum is 108424800
The reverse of 81242013 is 31024218
Previous prime number is 1109

Basic properties

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

Name

Name	eighty-one million two hundred forty-two thousand thirteen

Notation

Scientific notation	8.1242013 × 10^7
Engineering notation	8.1242013 × 10^6

Prime Factorization of 81242013

Prime Factorization 3 × 1109 × 24419

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81242013	Product of the distinct prime numbers

The prime factorization of 81242013 is 3 × 1109 × 24419. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 3, 32, 84, 955, 746, 1370, 1425, 43145, 51167, 938415, 614658, 7609954, 7064200, 95641700, 45584328, 477131625, 280547883, 4398671909, 5635408763

Basic calculations (n = 81242013)

Multiplication

n×y

n×2	162484026
n×3	243726039
n×4	324968052
n×5	406210065

Division

n÷y

n÷2	40621006.5
n÷3	27080671
n÷3	20310503.25
n÷5	16248402.6

Exponentiation

n^y

n²	6600264676292169
n³	5.3621878863477E+23
n⁴	4.356349379711E+31
n⁵	3.5391859293902E+39

Nth Root

^y√n

²√n	9013.4351387249
³√n	433.10536009927
⁴√n	94.939112797228
⁵√n	38.190569544065

Divisors of 81242013

1, 3, 1109, 3327, 24419, 73257, 27080671, 81242013

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	-81242012	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 81242013 can be divided by 8 positive divisors. The sum of these divisors (counting 81242013) is 1, the average is 0.125.

Base conversion 81242013

Base	System	Value
2	Binary	100110101111010011110011101
3	Ternary	12122212112002110
4	Quaternary	10311322132131
5	Quinary	131244221023
6	Senary	12021144233
8	Octal	465723635
10	Decimal	81242013
12	Duodecimal	2325b079
16	Hexadecimal	4d7a79d
20	Vigesimal	157f50d
36	Base36	1cdaql

Cryptographic Hash Functions

md5	4a5a5a0df3b34d9442cf569b755ff720
sha1	f3e24b6935fe5231a3f69f048019d867107d501f
sha256	94e4b9dd59200ba5319e168db7c4396a6bd1d7bf075fe34df3ad1960704f142f
sha512	d975bf341965475f336c92149caa6bb9bf100b2726cc90a340f047fbb6133c711f692dbe05671d25481df90bfeb7e67a8f69779b74d4831687b0bb7755171a74
ripemd-160	c5070f5bea4bc0d994513fe79f043498b1673c6b

81242013 as geometric shapes

Circle

Radius = n

Diameter	162484026
Circumference	510458622.40729
Area	2.0735343018788E+16

Sphere

Radius = n

Volume	2.2461080094557E+24
Surface area	8.2941372075151E+16
Circumference	510458622.40729

Square

Length = n

Perimeter	324968052
Area	6600264676292169
Diagonal	114893556.61909

Cube

Length = n

Surface area	39601588057753014
Volume	5.3621878863477E+23
Space diagonal	140715294.22517

Equilateral Triangle

Length = n

Perimeter	243726039
Area	2.857998440685E+15
Altitude	70357647.112586

Triangular Pyramid

Length = n

Surface area	2.857998440685E+15
Volume	6.319399027388E+22
Height	38297852.206364