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

81242018 (number)

81242018 is an even 8-digits composite number following 81242017 and preceding 81242019. In scientific notation, it is written as 8.1242018 × 10^7. The sum of its digits is 26. It has a total of 5 prime factors and 24 positive divisors. There are 34086000 positive integers (up to 81242018) that are relatively prime to 81242018.

Interesting facts

81242018 has 24 divisors, whose sum is 143960976
The reverse of 81242018 is 81024218
Previous prime number is 13

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8

Name

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

Notation

Scientific notation	8.1242018 × 10^7
Engineering notation	8.1242018 × 10^6

Prime Factorization of 81242018

Prime Factorization 2 × 11 × 13 × 13 × 21851

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	5	Total number of prime factors
rad	Radical	6249386	Product of the distinct prime numbers

The prime factorization of 81242018 is 2 × 11 × 13 × 13 × 21851. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 3, 62, 51, 733, 709, 2181, 9427, 25300, 54541, 37733, 827930, 5059044, 7286550, 91386299, 30305418, 235172657, 45505559, 4372586218, 1358015439

Basic calculations (n = 81242018)

Multiplication

n×y

n×2	162484036
n×3	243726054
n×4	324968072
n×5	406210090

Division

n÷y

n÷2	40621009
n÷3	27080672.666667
n÷3	20310504.5
n÷5	16248403.6

Exponentiation

n^y

n²	6600265488712324
n³	5.3621888763875E+23
n⁴	4.3563504521487E+31
n⁵	3.5391870184777E+39

Nth Root

^y√n

²√n	9013.4354160886
³√n	433.10536898435
⁴√n	94.939114257974
⁵√n	38.190570014149

Divisors of 81242018

1, 2, 11, 13, 22, 26, 143, 169, 286, 338, 1859, 3718, 21851, 43702, 240361, 284063, 480722, 568126, 3124693, 3692819, 6249386, 7385638, 40621009, 81242018

24 divisors

τ	Total Divisors	24	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81242017	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.041666666666667	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	24	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81242018 can be divided by 24 positive divisors. The sum of these divisors (counting 81242018) is 1, the average is 0.041666666666667.

Base conversion 81242018

Base	System	Value
2	Binary	100110101111010011110100010
3	Ternary	12122212112002122
4	Quaternary	10311322132202
5	Quinary	131244221033
6	Senary	12021144242
8	Octal	465723642
10	Decimal	81242018
12	Duodecimal	2325b082
16	Hexadecimal	4d7a7a2
20	Vigesimal	157f50i
36	Base36	1cdaqq

Cryptographic Hash Functions

md5	484e0cac778ad298e5be37f617805b77
sha1	83b263f26f21f1ee3d5bfe7f52a0446e70d5ac9c
sha256	e56a97df7f3e71a357fcf10b2f0fd73ecc608661b7cf2473649691eb8f3c040d
sha512	ae0cd262641be537bc89349f0bf5deeb526b7f7dd4432b994bd5b9102c94e97330deea20435ef588e4f32f1842ba1ba435d9b228949136ba309fab54f1c8eb7a
ripemd-160	ec7e166ef015b5aca7a2228bd02e630565e24faf

81242018 as geometric shapes

Circle

Radius = n

Diameter	162484036
Circumference	510458653.82322
Area	2.0735345571081E+16

Sphere

Radius = n

Volume	2.2461084241626E+24
Surface area	8.2941382284324E+16
Circumference	510458653.82322

Square

Length = n

Perimeter	324968072
Area	6600265488712324
Diagonal	114893563.69016

Cube

Length = n

Surface area	39601592932273944
Volume	5.3621888763875E+23
Space diagonal	140715302.88543

Equilateral Triangle

Length = n

Perimeter	243726054
Area	2.8579987924733E+15
Altitude	70357651.442713

Triangular Pyramid

Length = n

Surface area	2.8579987924733E+15
Volume	6.3194001941611E+22
Height	38297854.563386