81979528 (number)

81979528 is an even 8-digits composite number following 81979527 and preceding 81979529. In scientific notation, it is written as 8.1979528 × 10^7. The sum of its digits is 49. It has a total of 5 prime factors and 16 positive divisors. There are 38832336 positive integers (up to 81979528) that are relatively prime to 81979528.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred seventy-nine thousand five hundred twenty-eight

Notation

Scientific notation 8.1979528 × 10^7
Engineering notation 8.1979528 × 10^6

Prime Factorization of 81979528

Prime Factorization 2 × 2 × 2 × 19 × 539339

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20494882
Product of the distinct prime numbers

The prime factorization of 81979528 is 2 × 2 × 2 × 19 × 539339. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81979528)

Multiplication

n×y
n×2 163959056
n×3 245938584
n×4 327918112
n×5 409897640

Division

n÷y
n÷2 40989764
n÷3 27326509.333333
n÷3 20494882
n÷5 16395905.6

Exponentiation

ny
n2 6720643011102784
n3 5.509551419067E+23
n4 4.5167042482685E+31
n5 3.7027728238864E+39

Nth Root

y√n
2√n 9054.2546904756
3√n 434.41199100468
4√n 95.153847481201
5√n 38.259657922401

Divisors of 81979528

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 -81979527
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 81979528 can be divided by 16 positive divisors. The sum of these divisors (counting 81979528) is 1, the average is 0.0625.

Base conversion 81979528

Base System Value
2 Binary 100111000101110100010001000
3 Ternary 12201020222202211
4 Quaternary 10320232202020
5 Quinary 131441321103
6 Senary 12045034504
8 Octal 470564210
10 Decimal 81979528
12 Duodecimal 23555a34
16 Hexadecimal 4e2e888
20 Vigesimal 15c78g8
36 Base36 1ct3t4

Cryptographic Hash Functions

md5 0d4a337ed957e3ec8e19c05482fc01ea
sha1 f099de9521f8ebf44634e42ccbae36690665b6ea
sha256 241105fc27a1a848b86043227be142bd6c57d8905327a821bb6f912bf8219c3f
sha512 5ad28474290a12df4aac1522d104e3d52b5e2cb14a71af05874ac2c64d9627dcbf7730e6eb1d6c1c58414f05d9c5fba9bbd582452ecb859b1c78b7bd1056ad03
ripemd-160 bbe95e82c8b33f1b2550a7fc05213ab535c4ca70

81979528 as geometric shapes

Circle

Radius = n
Diameter 163959056
Circumference 515092565.81912
Area 2.111352271108E+16

Sphere

Radius = n
Volume 2.3078355016955E+24
Surface area 8.445409084432E+16
Circumference 515092565.81912

Square

Length = n
Perimeter 327918112
Area 6720643011102784
Diagonal 115936560.33454

Cube

Length = n
Surface area 40323858066616704
Volume 5.509551419067E+23
Space diagonal 141992707.67652

Equilateral Triangle

Length = n
Perimeter 245938584
Area 2.9101237886907E+15
Altitude 70996353.838258

Triangular Pyramid

Length = n
Surface area 2.9101237886907E+15
Volume 6.4930686161971E+22
Height 38645520.111515