81189764 (number)

81189764 is an even 8-digits composite number following 81189763 and preceding 81189765. In scientific notation, it is written as 8.1189764 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 12 positive divisors. There are 40539744 positive integers (up to 81189764) that are relatively prime to 81189764.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred eighty-nine thousand seven hundred sixty-four

Notation

Scientific notation 8.1189764 × 10^7
Engineering notation 8.1189764 × 10^6

Prime Factorization of 81189764

Prime Factorization 2 × 2 × 757 × 26813

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40594882
Product of the distinct prime numbers

The prime factorization of 81189764 is 2 × 2 × 757 × 26813. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 71, 37, 998, 731, 1006, 3106, 65132, 82061, 328109, 897166, 7509940, 8250435, 44400353, 79154668, 409005706, 305112955, 1713627376, 6800840532

Basic calculations (n = 81189764)

Multiplication

n×y
n×2 162379528
n×3 243569292
n×4 324759056
n×5 405948820

Division

n÷y
n÷2 40594882
n÷3 27063254.666667
n÷3 20297441
n÷5 16237952.8

Exponentiation

ny
n2 6591777778375696
n3 5.3518488216677E+23
n4 4.3451534279488E+31
n5 3.5278198135895E+39

Nth Root

y√n
2√n 9010.5362770481
3√n 433.01249281693
4√n 94.923844617926
5√n 38.185655996218

Divisors of 81189764

1, 2, 4, 757, 1514, 3028, 26813, 53626, 107252, 20297441, 40594882, 81189764

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81189763
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81189764 can be divided by 12 positive divisors. The sum of these divisors (counting 81189764) is 1, the average is 0.083333333333333.

Base conversion 81189764

Base System Value
2 Binary 100110101101101101110000100
3 Ternary 12122202212102022
4 Quaternary 10311231232010
5 Quinary 131241033024
6 Senary 12020102312
8 Octal 465555604
10 Decimal 81189764
12 Duodecimal 23234998
16 Hexadecimal 4d6db84
20 Vigesimal 1578e84
36 Base36 1cc6f8

Cryptographic Hash Functions

md5 2560838b0613676c52b2633a09acded1
sha1 91cc5fbd0310ff1a20ca270e61df0b57debecda4
sha256 05f822cf6a5b9f4cdcf70c313889b2f1b4937009c43971ceffa35c2214d0e3d3
sha512 7b26b28ec664bc398375a8db755c012a65df9d9b8d8dc4750d1900e05a88994ef68794794e16a36e5959be548d5a766b438d0ecd41d527f0a72664b2014f0df8
ripemd-160 537026a8c787591090a89edd873602a319bcb776

81189764 as geometric shapes

Circle

Radius = n
Diameter 162379528
Circumference 510130332.25818
Area 2.0708680642642E+16

Sphere

Radius = n
Volume 2.2417771921699E+24
Surface area 8.2834722570566E+16
Circumference 510130332.25818

Square

Length = n
Perimeter 324759056
Area 6591777778375696
Diagonal 114819665.37467

Cube

Length = n
Surface area 39550666670254176
Volume 5.3518488216677E+23
Space diagonal 140624796.30253

Equilateral Triangle

Length = n
Perimeter 243569292
Area 2.8543235060876E+15
Altitude 70312398.151263

Triangular Pyramid

Length = n
Surface area 2.8543235060876E+15
Volume 6.3072143228107E+22
Height 38273221.791557