81793979 (number)

81793979 is an odd 8-digits composite number following 81793978 and preceding 81793980. In scientific notation, it is written as 8.1793979 × 10^7. The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors. There are 81369984 positive integers (up to 81793979) that are relatively prime to 81793979.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred ninety-three thousand nine hundred seventy-nine

Notation

Scientific notation 8.1793979 × 10^7
Engineering notation 8.1793979 × 10^6

Prime Factorization of 81793979

Prime Factorization 193 × 423803

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81793979
Product of the distinct prime numbers

The prime factorization of 81793979 is 193 × 423803. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81793979)

Multiplication

n×y
n×2 163587958
n×3 245381937
n×4 327175916
n×5 408969895

Division

n÷y
n÷2 40896989.5
n÷3 27264659.666667
n÷3 20448494.75
n÷5 16358795.8

Exponentiation

ny
n2 6690255000652441
n3 5.4722257702801E+23
n4 4.4759511973755E+31
n5 3.6610585824316E+39

Nth Root

y√n
2√n 9044.0023772664
3√n 434.08400017778
4√n 95.099959922528
5√n 38.242323162733

Divisors of 81793979

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81793978
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81793979 can be divided by 4 positive divisors. The sum of these divisors (counting 81793979) is 1, the average is 0.25.

Base conversion 81793979

Base System Value
2 Binary 100111000000001001110111011
3 Ternary 12200220120020122
4 Quaternary 10320001032323
5 Quinary 131414401404
6 Senary 12041043455
8 Octal 470011673
10 Decimal 81793979
12 Duodecimal 2348658b
16 Hexadecimal 4e013bb
20 Vigesimal 15b44ij
36 Base36 1cp4mz

Cryptographic Hash Functions

md5 1cd86eddfee3e9ae789d636ad345cefa
sha1 287233a0fa5576a0add142cabf61b2a67b83dbdd
sha256 322e7680c0fb06993f038bc70ddabd2276561cfb3246261ca791acb520f3e051
sha512 a229b2091c76058a60b1b6762d2155f8844d44ba4d8409ebdcf22fc5eab0c91a5af1a70c33b21595f5e60bd430f9d9ee4be410ca6ad2799cf412195d385cd356
ripemd-160 7312f60e87e408f81837c39cf6fb8ebeb1f759a6

81793979 as geometric shapes

Circle

Radius = n
Diameter 163587958
Circumference 513926727.06856
Area 2.1018055960692E+16

Sphere

Radius = n
Volume 2.2922005704929E+24
Surface area 8.4072223842768E+16
Circumference 513926727.06856

Square

Length = n
Perimeter 327175916
Area 6690255000652441
Diagonal 115674154.42226

Cube

Length = n
Surface area 40141530003914646
Volume 5.4722257702801E+23
Space diagonal 141671327.38122

Equilateral Triangle

Length = n
Perimeter 245381937
Area 2.8969653941804E+15
Altitude 70835663.690611

Triangular Pyramid

Length = n
Surface area 2.8969653941804E+15
Volume 6.4490799172481E+22
Height 38558051.474087