81815094 (number)

81815094 is an even 8-digits composite number following 81815093 and preceding 81815095. In scientific notation, it is written as 8.1815094 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 26085840 positive integers (up to 81815094) that are relatively prime to 81815094.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred fifteen thousand ninety-four

Notation

Scientific notation 8.1815094 × 10^7
Engineering notation 8.1815094 × 10^6

Prime Factorization of 81815094

Prime Factorization 2 × 9 × 23 × 197621

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81815094
Product of the distinct prime numbers

The prime factorization of 81815094 is 2 × 9 × 23 × 197621. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 19, 92, 236, 521, 8905, 344, 56796, 98134, 65212, 118707, 9122236, 8806866, 29348176, 58764731, 207044516, 298511670, 935931267, 6867672161

Basic calculations (n = 81815094)

Multiplication

n×y
n×2 163630188
n×3 245445282
n×4 327260376
n×5 409075470

Division

n÷y
n÷2 40907547
n÷3 27271698
n÷3 20453773.5
n÷5 16363018.8

Exponentiation

ny
n2 6693709606228836
n3 5.4764648064232E+23
n4 4.480574829252E+31
n5 3.6657865082929E+39

Nth Root

y√n
2√n 9045.1696501503
3√n 434.12134968763
4√n 95.106096808513
5√n 38.244297399213

Divisors of 81815094

1, 2, 9, 18, 23, 46, 207, 414, 197621, 395242, 1778589, 3557178, 4545283, 9090566, 40907547, 81815094

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 -81815093
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 81815094 can be divided by 16 positive divisors. The sum of these divisors (counting 81815094) is 1, the average is 0.0625.

Base conversion 81815094

Base System Value
2 Binary 100111000000110011000110110
3 Ternary 12200221122012200
4 Quaternary 10320012120312
5 Quinary 131421040334
6 Senary 12041325330
8 Octal 470063066
10 Decimal 81815094
12 Duodecimal 23496846
16 Hexadecimal 4e06636
20 Vigesimal 15b6hee
36 Base36 1cpkxi

Cryptographic Hash Functions

md5 e034b59227bffe4bafd4b89401559637
sha1 2c50cdcd8597a0e5d38f88369389c29eb9d0c017
sha256 9cefb759b45e1851e0ff39e20b4fbcc02657a444d380229f794c6925f4466634
sha512 cee1bd078f273ed776960095fd9375234b4967c5c48441f3b9e161e314be947193134e9027b73ac2929e8fd4b9c8b82e9298f6dc7bf020adccd36059a978d1ad
ripemd-160 3f21b0f118e812619bfa16dfa3b9cb4a053bd9ad

81815094 as geometric shapes

Circle

Radius = n
Diameter 163630188
Circumference 514059396.52632
Area 2.1028908924192E+16

Sphere

Radius = n
Volume 2.2939762138003E+24
Surface area 8.4115635696768E+16
Circumference 514059396.52632

Square

Length = n
Perimeter 327260376
Area 6693709606228836
Diagonal 115704015.54163

Cube

Length = n
Surface area 40162257637373016
Volume 5.4764648064232E+23
Space diagonal 141707899.63402

Equilateral Triangle

Length = n
Perimeter 245445282
Area 2.8984612822751E+15
Altitude 70853949.817012

Triangular Pyramid

Length = n
Surface area 2.8984612822751E+15
Volume 6.4540756692521E+22
Height 38568005.180543