81946875 (number)

81946875 is an odd 8-digits composite number following 81946874 and preceding 81946876. In scientific notation, it is written as 8.1946875 × 10^7. The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors. There are 43700000 positive integers (up to 81946875) that are relatively prime to 81946875.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred forty-six thousand eight hundred seventy-five

Notation

Scientific notation 8.1946875 × 10^7
Engineering notation 8.1946875 × 10^6

Prime Factorization of 81946875

Prime Factorization 3 × 25 × 125 × 8741

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81946875
Product of the distinct prime numbers

The prime factorization of 81946875 is 3 × 25 × 125 × 8741. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81946875)

Multiplication

n×y
n×2 163893750
n×3 245840625
n×4 327787500
n×5 409734375

Division

n÷y
n÷2 40973437.5
n÷3 27315625
n÷3 20486718.75
n÷5 16389375

Exponentiation

ny
n2 6715290322265625
n3 5.5029705662741E+23
n4 4.5095124112314E+31
n5 3.6954044987413E+39

Nth Root

y√n
2√n 9052.4513254698
3√n 434.35430693479
4√n 95.144370960503
5√n 38.256609620639

Divisors of 81946875

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 -81946874
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 81946875 can be divided by 16 positive divisors. The sum of these divisors (counting 81946875) is 1, the average is 0.0625.

Base conversion 81946875

Base System Value
2 Binary 100111000100110100011111011
3 Ternary 12201012022222110
4 Quaternary 10320212203323
5 Quinary 131434300000
6 Senary 12044223403
8 Octal 470464373
10 Decimal 81946875
12 Duodecimal 2353ab63
16 Hexadecimal 4e268fb
20 Vigesimal 15c373f
36 Base36 1csem3

Cryptographic Hash Functions

md5 8f5b043b590dfe5f740b2dbeaa56cfd4
sha1 2376a76bd8382d8c4724c981e0bd78d8bec86d58
sha256 c55d216f0a61f3146da6cf230f4b44285ac437d33fe9a87337c182cb8b416ad3
sha512 aacc645b961b3ba3887d417ef346aee3e5178a68e891257aa2deab6d337f249de4285f26d0111fbd2c84ab9b9f39d40153216558e20706546a8cac6ecc07ccad
ripemd-160 f291842d21cd6c4852e79ace8300d16089b5d118

81946875 as geometric shapes

Circle

Radius = n
Diameter 163893750
Circumference 514887400.96928
Area 2.1096706743152E+16

Sphere

Radius = n
Volume 2.3050789205237E+24
Surface area 8.4386826972609E+16
Circumference 514887400.96928

Square

Length = n
Perimeter 327787500
Area 6715290322265625
Diagonal 115890382.01909

Cube

Length = n
Surface area 40291741933593750
Volume 5.5029705662741E+23
Space diagonal 141936151.0215

Equilateral Triangle

Length = n
Perimeter 245840625
Area 2.9078060064349E+15
Altitude 70968075.510748

Triangular Pyramid

Length = n
Surface area 2.9078060064349E+15
Volume 6.485313006804E+22
Height 38630127.339698