81749232 (number)

81749232 is an even 8-digits composite number following 81749231 and preceding 81749233. In scientific notation, it is written as 8.1749232 × 10^7. The sum of its digits is 36. It has a total of 7 prime factors and 40 positive divisors. There are 26369280 positive integers (up to 81749232) that are relatively prime to 81749232.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred forty-nine thousand two hundred thirty-two

Notation

Scientific notation 8.1749232 × 10^7
Engineering notation 8.1749232 × 10^6

Prime Factorization of 81749232

Prime Factorization 2 × 2 × 2 × 2 × 9 × 31 × 18313

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 10218654
Product of the distinct prime numbers

The prime factorization of 81749232 is 2 × 2 × 2 × 2 × 9 × 31 × 18313. Since it has a total of 7 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81749232)

Multiplication

n×y
n×2 163498464
n×3 245247696
n×4 326996928
n×5 408746160

Division

n÷y
n÷2 40874616
n÷3 27249744
n÷3 20437308
n÷5 16349846.4

Exponentiation

ny
n2 6682936932589824
n3 5.4632496174365E+23
n4 4.4661646044973E+31
n5 3.6510552640324E+39

Nth Root

y√n
2√n 9041.5281894158
3√n 434.00482768384
4√n 95.086950678922
5√n 38.238138004258

Divisors of 81749232

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 -81749231
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 81749232 can be divided by 40 positive divisors. The sum of these divisors (counting 81749232) is 1, the average is 0.025.

Base conversion 81749232

Base System Value
2 Binary 100110111110110010011110000
3 Ternary 12200211021212100
4 Quaternary 10313312103300
5 Quinary 131411433412
6 Senary 12040100400
8 Octal 467662360
10 Decimal 81749232
12 Duodecimal 23464700
16 Hexadecimal 4df64f0
20 Vigesimal 15aid1c
36 Base36 1co640

Cryptographic Hash Functions

md5 6152e637dcf3937b7ca8217273c40d9f
sha1 f506e38495a125a4e5432dc695a2f43d0e1593c4
sha256 261fd569cb7c7ea97c31e98104c04d74e4bc2f7c274e4172849bd4f4de705e1b
sha512 d04aa1cff381b92616050dc4e87b3d93cc0bd186fb7b469a9c536e25f4fd1658af18aafec62834ede4d8de287325e8219c6a4138b46c2dc1c1da454ba5bdfcb2
ripemd-160 41d85301e30b5d72c71120cbbc2ca92976b27a50

81749232 as geometric shapes

Circle

Radius = n
Diameter 163498464
Circumference 513645573.37562
Area 2.0995065571828E+16

Sphere

Radius = n
Volume 2.2884406483821E+24
Surface area 8.3980262287312E+16
Circumference 513645573.37562

Square

Length = n
Perimeter 326996928
Area 6682936932589824
Diagonal 115610872.60798

Cube

Length = n
Surface area 40097621595538944
Volume 5.4632496174365E+23
Space diagonal 141593823.30374

Equilateral Triangle

Length = n
Perimeter 245247696
Area 2.893796577756E+15
Altitude 70796911.651868

Triangular Pyramid

Length = n
Surface area 2.893796577756E+15
Volume 6.4385014196736E+22
Height 38536957.535995