81793989 (number)

81793989 is an odd 8-digits composite number following 81793988 and preceding 81793990. In scientific notation, it is written as 8.1793989 × 10^7. The sum of its digits is 54. It has a total of 5 prime factors and 16 positive divisors. There are 53965440 positive integers (up to 81793989) that are relatively prime to 81793989.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1793989 × 10^7
Engineering notation 8.1793989 × 10^6

Prime Factorization of 81793989

Prime Factorization 3 × 3 × 3 × 97 × 31231

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9088221
Product of the distinct prime numbers

The prime factorization of 81793989 is 3 × 3 × 3 × 97 × 31231. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81793989)

Multiplication

n×y
n×2 163587978
n×3 245381967
n×4 327175956
n×5 408969945

Division

n÷y
n÷2 40896994.5
n÷3 27264663
n÷3 20448497.25
n÷5 16358797.8

Exponentiation

ny
n2 6690256636532121
n3 5.4722277773569E+23
n4 4.4759533862662E+31
n5 3.6610608204077E+39

Nth Root

y√n
2√n 9044.0029301189
3√n 434.08401786791
4√n 95.09996282922
5√n 38.242324097822

Divisors of 81793989

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 -81793988
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 81793989 can be divided by 16 positive divisors. The sum of these divisors (counting 81793989) is 1, the average is 0.0625.

Base conversion 81793989

Base System Value
2 Binary 100111000000001001111000101
3 Ternary 12200220120021000
4 Quaternary 10320001033011
5 Quinary 131414401424
6 Senary 12041043513
8 Octal 470011705
10 Decimal 81793989
12 Duodecimal 23486599
16 Hexadecimal 4e013c5
20 Vigesimal 15b44j9
36 Base36 1cp4n9

Cryptographic Hash Functions

md5 99bbcd373edd5ddcc30a85b529f7d157
sha1 71f52dc69ecdcb4a592d8475d6ef7dee84bf176c
sha256 6154ab8eab5320297f4d4b925bf84198e7471130668b94f58c4b26565b3cc97a
sha512 5bba6ad3db44d85643bb69b9bd33ae91c6134345aa5a5f6a971700be4c9aeff5503d5dfe30a8626d380ddf94257059bec73241309e3851251836dfd62647fa58
ripemd-160 f2810460e227527938b81cec42d8be2aaa9c9777

81793989 as geometric shapes

Circle

Radius = n
Diameter 163587978
Circumference 513926789.90041
Area 2.101806109996E+16

Sphere

Radius = n
Volume 2.2922014112152E+24
Surface area 8.4072244399839E+16
Circumference 513926789.90041

Square

Length = n
Perimeter 327175956
Area 6690256636532121
Diagonal 115674168.5644

Cube

Length = n
Surface area 40141539819192726
Volume 5.4722277773569E+23
Space diagonal 141671344.70173

Equilateral Triangle

Length = n
Perimeter 245381967
Area 2.8969661025371E+15
Altitude 70835672.350865

Triangular Pyramid

Length = n
Surface area 2.8969661025371E+15
Volume 6.4490822826107E+22
Height 38558056.188132