81016816 (number)

81016816 is an even 8-digits composite number following 81016815 and preceding 81016817. In scientific notation, it is written as 8.1016816 × 10^7. The sum of its digits is 31. It has a total of 6 prime factors and 20 positive divisors. There are 39566016 positive integers (up to 81016816) that are relatively prime to 81016816.

Interesting facts

Basic properties

Name

Name eighty-one million sixteen thousand eight hundred sixteen

Notation

Scientific notation 8.1016816 × 10^7
Engineering notation 8.1016816 × 10^6

Prime Factorization of 81016816

Prime Factorization 2 × 2 × 2 × 2 × 43 × 117757

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10127102
Product of the distinct prime numbers

The prime factorization of 81016816 is 2 × 2 × 2 × 2 × 43 × 117757. Since it has a total of 6 prime factors.

Most popular turbo-numbers

2, 1, 18, 35, 655, 847, 5364, 8759, 76973, 79967, 972647, 600421, 1456930, 2304776, 76335763, 59056008, 221742696, 185476468, 2052216612, 6490354573

Basic calculations (n = 81016816)

Multiplication

n×y
n×2 162033632
n×3 243050448
n×4 324067264
n×5 405084080

Division

n÷y
n÷2 40508408
n÷3 27005605.333333
n÷3 20254204
n÷5 16203363.2

Exponentiation

ny
n2 6563724474777856
n3 5.3177205804777E+23
n4 4.3082478980798E+31
n5 3.4904052724112E+39

Nth Root

y√n
2√n 9000.93417374
3√n 432.70481083374
4√n 94.87325320521
5√n 38.169373728896

Divisors of 81016816

1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 117757, 235514, 471028, 942056, 1884112, 5063551, 10127102, 20254204, 40508408, 81016816

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81016815
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81016816 can be divided by 20 positive divisors. The sum of these divisors (counting 81016816) is 1, the average is 0.05.

Base conversion 81016816

Base System Value
2 Binary 100110101000011011111110000
3 Ternary 12122110002011211
4 Quaternary 10311003133300
5 Quinary 131220014231
6 Senary 12012245504
8 Octal 465033760
10 Decimal 81016816
12 Duodecimal 23170894
16 Hexadecimal 4d437f0
20 Vigesimal 156720g
36 Base36 1c8gz4

Cryptographic Hash Functions

md5 c29e04c8685cc046bf721f3d2cac8f7f
sha1 08afa9334d9773e5f73eb498e10d305f79998f9b
sha256 76d7942a061401401d0988075f70b905f680290bf7d69dd6f7f981ca077f7066
sha512 5fabab664ffade7b54a8a3f119eb42b05a33d7d1c758446ddc78ad97de4d380897cdab03e5a2462acdd684ea2693739acb0dc6ac6b833de70c3460e1e92487f2
ripemd-160 3524cbbb29db024b563d39ffd5b73df9c99b645f

81016816 as geometric shapes

Circle

Radius = n
Diameter 162033632
Circumference 509043667.92567
Area 2.062054859015E+16

Sphere

Radius = n
Volume 2.2274815879296E+24
Surface area 8.2482194360599E+16
Circumference 509043667.92567

Square

Length = n
Perimeter 324067264
Area 6563724474777856
Diagonal 114575079.96749

Cube

Length = n
Surface area 39382346848667136
Volume 5.3177205804777E+23
Space diagonal 140325241.57946

Equilateral Triangle

Length = n
Perimeter 243050448
Area 2.8421760692996E+15
Altitude 70162620.78973

Triangular Pyramid

Length = n
Surface area 2.8421760692996E+15
Volume 6.2669938048518E+22
Height 38191693.322495