81572379 (number)

81572379 is an odd 8-digits composite number following 81572378 and preceding 81572380. In scientific notation, it is written as 8.1572379 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 46612776 positive integers (up to 81572379) that are relatively prime to 81572379.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred seventy-two thousand three hundred seventy-nine

Notation

Scientific notation 8.1572379 × 10^7
Engineering notation 8.1572379 × 10^6

Prime Factorization of 81572379

Prime Factorization 7 × 3 × 3884399

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81572379
Product of the distinct prime numbers

The prime factorization of 81572379 is 7 × 3 × 3884399. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81572379)

Multiplication

n×y
n×2 163144758
n×3 244717137
n×4 326289516
n×5 407861895

Division

n÷y
n÷2 40786189.5
n÷3 27190793
n÷3 20393094.75
n÷5 16314475.8

Exponentiation

ny
n2 6654053015719641
n3 5.4278693448438E+23
n4 4.4276421536008E+31
n5 3.611733038299E+39

Nth Root

y√n
2√n 9031.742855064
3√n 433.69163219511
4√n 95.035482084662
5√n 38.221579098991

Divisors of 81572379

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81572378
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81572379 can be divided by 8 positive divisors. The sum of these divisors (counting 81572379) is 1, the average is 0.125.

Base conversion 81572379

Base System Value
2 Binary 100110111001011001000011011
3 Ternary 12200111022021020
4 Quaternary 10313023020123
5 Quinary 131340304004
6 Senary 12032213523
8 Octal 467131033
10 Decimal 81572379
12 Duodecimal 2339a2a3
16 Hexadecimal 4dcb21b
20 Vigesimal 159gaij
36 Base36 1ckdnf

Cryptographic Hash Functions

md5 907398077be607ef630002347f324ca2
sha1 407b61c027e5e2e0ebb8717589c0902ab853cce1
sha256 4db458c01553748001fe373945d8c3219890e0e9f6d2132554ff497e2fc1f3c1
sha512 85f440b1175d0c7c6a42272ac0bbb27fb612ee7b0fed313f460be145021f9224e537fbe5c8449517ee705e65599689191ad435666966070c9117b735d26e66e6
ripemd-160 cd1f91aaa88b634a126c21914b1c865ac4c791d1

81572379 as geometric shapes

Circle

Radius = n
Diameter 163144758
Circumference 512534373.20448
Area 2.0904324070782E+16

Sphere

Radius = n
Volume 2.2736205944542E+24
Surface area 8.3617296283127E+16
Circumference 512534373.20448

Square

Length = n
Perimeter 326289516
Area 6654053015719641
Diagonal 115360764.69684

Cube

Length = n
Surface area 39924318094317846
Volume 5.4278693448438E+23
Space diagonal 141287504.92226

Equilateral Triangle

Length = n
Perimeter 244717137
Area 2.8812894748708E+15
Altitude 70643752.461132

Triangular Pyramid

Length = n
Surface area 2.8812894748708E+15
Volume 6.396805368556E+22
Height 38453588.232279