81820008 (number)

81820008 is an even 8-digits composite number following 81820007 and preceding 81820009. In scientific notation, it is written as 8.1820008 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 16 positive divisors. There are 27273312 positive integers (up to 81820008) that are relatively prime to 81820008.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred twenty thousand eight

Notation

Scientific notation 8.1820008 × 10^7
Engineering notation 8.1820008 × 10^6

Prime Factorization of 81820008

Prime Factorization 2 × 2 × 2 × 9 × 1136389

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20455002
Product of the distinct prime numbers

The prime factorization of 81820008 is 2 × 2 × 2 × 9 × 1136389. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 2, 2, 20, 289, 544, 9709, 9081, 49882, 93397, 46538, 204277, 3141665, 8762522, 56845912, 94490162, 388681738, 948914475, 7677618339, 8046271869

Basic calculations (n = 81820008)

Multiplication

n×y
n×2 163640016
n×3 245460024
n×4 327280032
n×5 409100040

Division

n÷y
n÷2 40910004
n÷3 27273336
n÷3 20455002
n÷5 16364001.6

Exponentiation

ny
n2 6694513709120064
n3 5.4774516523631E+23
n4 4.4816513801596E+31
n5 3.6668875177787E+39

Nth Root

y√n
2√n 9045.4412827678
3√n 434.13004095106
4√n 95.107524848288
5√n 38.244756796015

Divisors of 81820008

1, 2, 4, 8, 9, 18, 36, 72, 1136389, 2272778, 4545556, 9091112, 10227501, 20455002, 40910004, 81820008

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 -81820007
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 81820008 can be divided by 16 positive divisors. The sum of these divisors (counting 81820008) is 1, the average is 0.0625.

Base conversion 81820008

Base System Value
2 Binary 100111000000111100101101000
3 Ternary 12200221212221200
4 Quaternary 10320013211220
5 Quinary 131421220013
6 Senary 12041404200
8 Octal 470074550
10 Decimal 81820008
12 Duodecimal 23499660
16 Hexadecimal 4e07968
20 Vigesimal 15b7a08
36 Base36 1cpoq0

Cryptographic Hash Functions

md5 0c3ecae09efdc360c7325d6aefd891b6
sha1 0c1161bdda0ad7d3e1f526c587b6287dfab29672
sha256 01d22ea778a7008f4b29d4113554f30831f8fdee88cb9222bfb0a175798ed181
sha512 a050a1583a64697b2dacdff993c3857d16b90cb1a90dcc499a5d563d35e719a2c3985bed8c9384a8a94afde368fbde1b16dae243d559cb523df7020460dfbf17
ripemd-160 060a0df53291dee14fefc3820b0c7a72c4bd23ed

81820008 as geometric shapes

Circle

Radius = n
Diameter 163640016
Circumference 514090272.09892
Area 2.1031435087928E+16

Sphere

Radius = n
Volume 2.294389582861E+24
Surface area 8.4125740351711E+16
Circumference 514090272.09892

Square

Length = n
Perimeter 327280032
Area 6694513709120064
Diagonal 115710964.98708

Cube

Length = n
Surface area 40167082254720384
Volume 5.4774516523631E+23
Space diagonal 141716410.93169

Equilateral Triangle

Length = n
Perimeter 245460024
Area 2.8988094690406E+15
Altitude 70858205.465846

Triangular Pyramid

Length = n
Surface area 2.8988094690406E+15
Volume 6.4552386783457E+22
Height 38570321.662358