81061572 (number)

81061572 is an even 8-digits composite number following 81061571 and preceding 81061573. In scientific notation, it is written as 8.1061572 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 24 positive divisors. There are 26863648 positive integers (up to 81061572) that are relatively prime to 81061572.

Interesting facts

Basic properties

Name

Name eighty-one million sixty-one thousand five hundred seventy-two

Notation

Scientific notation 8.1061572 × 10^7
Engineering notation 8.1061572 × 10^6

Prime Factorization of 81061572

Prime Factorization 2 × 2 × 3 × 173 × 39047

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40530786
Product of the distinct prime numbers

The prime factorization of 81061572 is 2 × 2 × 3 × 173 × 39047. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 8, 79, 56, 621, 726, 1604, 5668, 3815, 47037, 432364, 575185, 1195944, 1580721, 49303052, 87129228, 971813778, 915473751, 9926781525, 4068899102

Basic calculations (n = 81061572)

Multiplication

n×y
n×2 162123144
n×3 243184716
n×4 324246288
n×5 405307860

Division

n÷y
n÷2 40530786
n÷3 27020524
n÷3 20265393
n÷5 16212314.4

Exponentiation

ny
n2 6570978455111184
n3 5.3265384314944E+23
n4 4.3177757857535E+31
n5 3.5000569273672E+39

Nth Root

y√n
2√n 9003.4200168603
3√n 432.78447565901
4√n 94.886353164511
5√n 38.173589967481

Divisors of 81061572

1, 2, 3, 4, 6, 12, 173, 346, 519, 692, 1038, 2076, 39047, 78094, 117141, 156188, 234282, 468564, 6755131, 13510262, 20265393, 27020524, 40530786, 81061572

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81061571
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81061572 can be divided by 24 positive divisors. The sum of these divisors (counting 81061572) is 1, the average is 0.041666666666667.

Base conversion 81061572

Base System Value
2 Binary 100110101001110011011000100
3 Ternary 12122112100120110
4 Quaternary 10311032123010
5 Quinary 131222432242
6 Senary 12013233020
8 Octal 465163304
10 Decimal 81061572
12 Duodecimal 23192770
16 Hexadecimal 4d4e6c4
20 Vigesimal 156cdic
36 Base36 1c9fic

Cryptographic Hash Functions

md5 d4249836e12aa6d192bddf5a18d17e24
sha1 6bb6ed8f50afd2abde34718ce5f904e016178a7f
sha256 37680336d33ae8a628949fb231a81992fc08fc32d67364f897c811657e1b8588
sha512 0089bcc4a24996020d56f7a6afae07e27cc5741fc0c6c34106bf688d4075185e41a39c52b56c63de8e85743b47914755bfd5d301b1960e04d9161b0a2ac2cd70
ripemd-160 b227ab98c8ea75bfb62a6ef2e53e5a59e70d785b

81061572 as geometric shapes

Circle

Radius = n
Diameter 162123144
Circumference 509324878.16728
Area 2.0643337641474E+16

Sphere

Radius = n
Volume 2.2311752007262E+24
Surface area 8.2573350565896E+16
Circumference 509324878.16728

Square

Length = n
Perimeter 324246288
Area 6570978455111184
Diagonal 114638374.50968

Cube

Length = n
Surface area 39425870730667104
Volume 5.3265384314944E+23
Space diagonal 140402761.2454

Equilateral Triangle

Length = n
Perimeter 243184716
Area 2.8453171349233E+15
Altitude 70201380.622701

Triangular Pyramid

Length = n
Surface area 2.8453171349233E+15
Volume 6.2773857419341E+22
Height 38212791.503228