81125613 (number)

81125613 is an odd 8-digits composite number following 81125612 and preceding 81125614. In scientific notation, it is written as 8.1125613 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 54083736 positive integers (up to 81125613) that are relatively prime to 81125613.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-five thousand six hundred thirteen

Notation

Scientific notation 8.1125613 × 10^7
Engineering notation 8.1125613 × 10^6

Prime Factorization of 81125613

Prime Factorization 9 × 9013957

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81125613
Product of the distinct prime numbers

The prime factorization of 81125613 is 9 × 9013957. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 7, 10, 87, 854, 143, 9193, 4950, 73779, 74262, 380155, 151414, 4497154, 6672620, 69944400, 30692590, 763495062, 727250215, 6767193937, 6658375990

Basic calculations (n = 81125613)

Multiplication

n×y
n×2 162251226
n×3 243376839
n×4 324502452
n×5 405628065

Division

n÷y
n÷2 40562806.5
n÷3 27041871
n÷3 20281403.25
n÷5 16225122.6

Exponentiation

ny
n2 6581365084625769
n3 5.3391727686706E+23
n4 4.3314366377131E+31
n5 3.5139045240514E+39

Nth Root

y√n
2√n 9006.9757965701
3√n 432.898416434
4√n 94.90508835974
5√n 38.179619711625

Divisors of 81125613

1, 9, 9013957, 81125613

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81125612
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81125613 can be divided by 4 positive divisors. The sum of these divisors (counting 81125613) is 1, the average is 0.25.

Base conversion 81125613

Base System Value
2 Binary 100110101011110000011101101
3 Ternary 12122122121102100
4 Quaternary 10311132003231
5 Quinary 131232004423
6 Senary 12014445313
8 Octal 465360355
10 Decimal 81125613
12 Duodecimal 23203839
16 Hexadecimal 4d5e0ed
20 Vigesimal 1570e0d
36 Base36 1casx9

Cryptographic Hash Functions

md5 34abffe3a6486acf8a79b459d0d8383d
sha1 b951e97d65cc302920a540f3fb0b8ad421d4b86f
sha256 f52ac48f9b9918e8d434ec45ee6c41b2d69d23d36d2ac9f18cde8076430ca558
sha512 2de0eb016ceb00d50d0e4c7e184c44230c978d7e39dc79e6ceff2fdec630e94d990703075a751c68956254c35f79f0c1bf9b54eae750da69ffa3eaf6daea07e8
ripemd-160 61d75d4aecc1e775035973cfa7649a5dd87e5719

81125613 as geometric shapes

Circle

Radius = n
Diameter 162251226
Circumference 509727259.63754
Area 2.0675968200453E+16

Sphere

Radius = n
Volume 2.236467459507E+24
Surface area 8.2703872801811E+16
Circumference 509727259.63754

Square

Length = n
Perimeter 324502452
Area 6581365084625769
Diagonal 114728942.16043

Cube

Length = n
Surface area 39488190507754614
Volume 5.3391727686706E+23
Space diagonal 140513683.51117

Equilateral Triangle

Length = n
Perimeter 243376839
Area 2.8498146774329E+15
Altitude 70256841.755585

Triangular Pyramid

Length = n
Surface area 2.8498146774329E+15
Volume 6.2922754510893E+22
Height 38242980.720144