81102018 (number)

81102018 is an even 8-digits composite number following 81102017 and preceding 81102019. In scientific notation, it is written as 8.1102018 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 26374560 positive integers (up to 81102018) that are relatively prime to 81102018.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred two thousand eighteen

Notation

Scientific notation 8.1102018 × 10^7
Engineering notation 8.1102018 × 10^6

Prime Factorization of 81102018

Prime Factorization 2 × 3 × 41 × 329683

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81102018
Product of the distinct prime numbers

The prime factorization of 81102018 is 2 × 3 × 41 × 329683. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 7, 1, 44, 871, 999, 3477, 3672, 84578, 17872, 63935, 834350, 7137708, 6205028, 82862483, 17976888, 259569063, 565213251, 4668289081, 6613836490

Basic calculations (n = 81102018)

Multiplication

n×y
n×2 162204036
n×3 243306054
n×4 324408072
n×5 405510090

Division

n÷y
n÷2 40551009
n÷3 27034006
n÷3 20275504.5
n÷5 16220403.6

Exponentiation

ny
n2 6577537323672324
n3 5.3345155042014E+23
n4 4.3263997244302E+31
n5 3.5087974832594E+39

Nth Root

y√n
2√n 9005.6658832093
3√n 432.85644354704
4√n 94.898186933204
5√n 38.177398580924

Divisors of 81102018

1, 2, 3, 6, 41, 82, 123, 246, 329683, 659366, 989049, 1978098, 13517003, 27034006, 40551009, 81102018

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81102017
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81102018 can be divided by 16 positive divisors. The sum of these divisors (counting 81102018) is 1, the average is 0.0625.

Base conversion 81102018

Base System Value
2 Binary 100110101011000010011000010
3 Ternary 12122121102001110
4 Quaternary 10311120103002
5 Quinary 131230231033
6 Senary 12014144150
8 Octal 465302302
10 Decimal 81102018
12 Duodecimal 231b2056
16 Hexadecimal 4d584c2
20 Vigesimal 156hf0i
36 Base36 1caapu

Cryptographic Hash Functions

md5 cdef532eaecb13226d3aa116ccbbacb4
sha1 2a8f2b6f4c9f15a127ba444c64a14fce83246758
sha256 cdfa5e3bc7d0fe35ea7ce5f4ad34050520e8ed9dc20e4688914bfaaaad133166
sha512 c91c91f7ce44904fd8b7ce04f2d1617bb2bb190bf09708fded0d6eec9878122f20cad7ceead96a2dc5e87245b56c2b846ab8f57659604fa591bd345459bb7ba5
ripemd-160 48784eda0edd5421988fd3b036b30078ab5d2da7

81102018 as geometric shapes

Circle

Radius = n
Diameter 162204036
Circumference 509579007.88021
Area 2.0663942934762E+16

Sphere

Radius = n
Volume 2.234516629128E+24
Surface area 8.2655771739047E+16
Circumference 509579007.88021

Square

Length = n
Perimeter 324408072
Area 6577537323672324
Diagonal 114695573.79143

Cube

Length = n
Surface area 39465223942033944
Volume 5.3345155042014E+23
Space diagonal 140472815.77237

Equilateral Triangle

Length = n
Perimeter 243306054
Area 2.8481572083203E+15
Altitude 70236407.886183

Triangular Pyramid

Length = n
Surface area 2.8481572083203E+15
Volume 6.286786812276E+22
Height 38231857.930476