81489392 (number)

81489392 is an even 8-digits composite number following 81489391 and preceding 81489393. In scientific notation, it is written as 8.1489392 × 10^7. The sum of its digits is 44. It has a total of 7 prime factors and 40 positive divisors. There are 39370752 positive integers (up to 81489392) that are relatively prime to 81489392.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred eighty-nine thousand three hundred ninety-two

Notation

Scientific notation 8.1489392 × 10^7
Engineering notation 8.1489392 × 10^6

Prime Factorization of 81489392

Prime Factorization 2 × 2 × 2 × 2 × 179 × 37 × 769

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 10186174
Product of the distinct prime numbers

The prime factorization of 81489392 is 2 × 2 × 2 × 2 × 179 × 37 × 769. Since it has a total of 7 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81489392)

Multiplication

n×y
n×2 162978784
n×3 244468176
n×4 325957568
n×5 407446960

Division

n÷y
n÷2 40744696
n÷3 27163130.666667
n÷3 20372348
n÷5 16297878.4

Exponentiation

ny
n2 6640521008529664
n3 5.4113201954831E+23
n4 4.4096519264724E+31
n5 3.5933985441986E+39

Nth Root

y√n
2√n 9027.1475007336
3√n 433.5445114017
4√n 95.011301963154
5√n 38.213799049488

Divisors of 81489392

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81489391
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489392 can be divided by 40 positive divisors. The sum of these divisors (counting 81489392) is 1, the average is 0.025.

Base conversion 81489392

Base System Value
2 Binary 100110110110110110111110000
3 Ternary 12200100002102122
4 Quaternary 10312312313300
5 Quinary 131330130032
6 Senary 12030333412
8 Octal 466666760
10 Decimal 81489392
12 Duodecimal 2335a268
16 Hexadecimal 4db6df0
20 Vigesimal 159639c
36 Base36 1cilm8

Cryptographic Hash Functions

md5 2391a881e69e14e2728c15d28c18b1f3
sha1 ce1886cf9512aaa1a938fa747cdadd6f6f0baa3d
sha256 7e9fbb8c2492b65d0c9f8c1711725ee57f7db3bd15196d49aba6128fff92fe78
sha512 c6e1331bcb313b257c7f99a17d83ee45d0393d5486fd47df5c33326435b42c3f29846ff6da6c774a0baea367506a94375b195535a19790d2958f9bf9221318a8
ripemd-160 da3d634731672bdca98ddc82f6ae5dd8afd2ca4a

81489392 as geometric shapes

Circle

Radius = n
Diameter 162978784
Circumference 512012950.5054
Area 2.0861812016405E+16

Sphere

Radius = n
Volume 2.2666885029802E+24
Surface area 8.3447248065622E+16
Circumference 512012950.5054

Square

Length = n
Perimeter 325957568
Area 6640521008529664
Diagonal 115243403.35594

Cube

Length = n
Surface area 39843126051177984
Volume 5.4113201954831E+23
Space diagonal 141143767.2219

Equilateral Triangle

Length = n
Perimeter 244468176
Area 2.8754299438755E+15
Altitude 70571883.610948

Triangular Pyramid

Length = n
Surface area 2.8754299438755E+15
Volume 6.3773020089963E+22
Height 38414467.785313