81872008 (number)

81872008 is an even 8-digits composite number following 81872007 and preceding 81872009. In scientific notation, it is written as 8.1872008 × 10^7. The sum of its digits is 34. It has a total of 5 prime factors and 16 positive divisors. There are 40824768 positive integers (up to 81872008) that are relatively prime to 81872008.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred seventy-two thousand eight

Notation

Scientific notation 8.1872008 × 10^7
Engineering notation 8.1872008 × 10^6

Prime Factorization of 81872008

Prime Factorization 2 × 2 × 2 × 373 × 27437

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20468002
Product of the distinct prime numbers

The prime factorization of 81872008 is 2 × 2 × 2 × 373 × 27437. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 3, 89, 3, 959, 42, 3904, 5307, 13951, 28416, 695265, 404428, 8796916, 6765281, 24360186, 25653785, 56613083, 898472232, 10628658, 3145966169

Basic calculations (n = 81872008)

Multiplication

n×y
n×2 163744016
n×3 245616024
n×4 327488032
n×5 409360040

Division

n÷y
n÷2 40936004
n÷3 27290669.333333
n÷3 20468002
n÷5 16374401.6

Exponentiation

ny
n2 6703025693952064
n3 5.4879017323945E+23
n4 4.4930553453782E+31
n5 3.6785546318124E+39

Nth Root

y√n
2√n 9048.3152022904
3√n 434.2219906749
4√n 95.122632439869
5√n 38.24961678571

Divisors of 81872008

1, 2, 4, 8, 373, 746, 1492, 2984, 27437, 54874, 109748, 219496, 10234001, 20468002, 40936004, 81872008

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 -81872007
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 81872008 can be divided by 16 positive divisors. The sum of these divisors (counting 81872008) is 1, the average is 0.0625.

Base conversion 81872008

Base System Value
2 Binary 100111000010100010010001000
3 Ternary 12201001112021121
4 Quaternary 10320110102020
5 Quinary 131424401013
6 Senary 12042445024
8 Octal 470242210
10 Decimal 81872008
12 Duodecimal 23503774
16 Hexadecimal 4e14488
20 Vigesimal 15be008
36 Base36 1cqsug

Cryptographic Hash Functions

md5 78ae0e30c1b07476529751161ee91e4b
sha1 729f5540054aa8eb56cf111416ec65734b920905
sha256 72b1b2328eb3963a7c295cbe1519125e92499af4b549e9aa3a63ecc6f802b41d
sha512 ad1f5468ac5b7cf734cdd1332c3af7991f34ad30bc2e627af11fd7a82d1718825b0e93af9071447b297bb2bc4f817fa272eced901d5b80ea13a4d3daecfd9dc9
ripemd-160 3ebb67b2f2c238f074f71a6c5f7de4ce1a2f4854

81872008 as geometric shapes

Circle

Radius = n
Diameter 163744016
Circumference 514416997.73489
Area 2.1058176276943E+16

Sphere

Radius = n
Volume 2.2987669021484E+24
Surface area 8.4232705107774E+16
Circumference 514416997.73489

Square

Length = n
Perimeter 327488032
Area 6703025693952064
Diagonal 115784504.09232

Cube

Length = n
Surface area 40218154163712384
Volume 5.4879017323945E+23
Space diagonal 141806477.57369

Equilateral Triangle

Length = n
Perimeter 245616024
Area 2.9024952665912E+15
Altitude 70903238.786843

Triangular Pyramid

Length = n
Surface area 2.9024952665912E+15
Volume 6.4675542157692E+22
Height 38594834.69744