81660900 (number)

81660900 is an even 8-digits composite number following 81660899 and preceding 81660901. In scientific notation, it is written as 8.1660900 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 24 positive divisors. There are 21776160 positive integers (up to 81660900) that are relatively prime to 81660900.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred sixty thousand nine hundred

Notation

Scientific notation 8.1660900 × 10^7
Engineering notation 8.1660900 × 10^6

Prime Factorization of 81660900

Prime Factorization 2 × 2 × 3 × 25 × 272203

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40830450
Product of the distinct prime numbers

The prime factorization of 81660900 is 2 × 2 × 3 × 25 × 272203. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 6, 65, 12, 790, 82, 5639, 3531, 40622, 3580, 361024, 140418, 5146922, 6194122, 83638111, 42810770, 517398234, 131979261, 3115741402, 2901213874

Basic calculations (n = 81660900)

Multiplication

n×y
n×2 163321800
n×3 244982700
n×4 326643600
n×5 408304500

Division

n÷y
n÷2 40830450
n÷3 27220300
n÷3 20415225
n÷5 16332180

Exponentiation

ny
n2 6668502588810000
n3 5.4455592305455E+23
n4 4.4468926776966E+31
n5 3.6313725826411E+39

Nth Root

y√n
2√n 9036.6420754614
3√n 433.84845381694
4√n 95.061254333516
5√n 38.229870985905

Divisors of 81660900

1, 2, 3, 4, 6, 12, 25, 50, 75, 100, 150, 300, 272203, 544406, 816609, 1088812, 1633218, 3266436, 6805075, 13610150, 20415225, 27220300, 40830450, 81660900

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 -81660899
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 81660900 can be divided by 24 positive divisors. The sum of these divisors (counting 81660900) is 1, the average is 0.041666666666667.

Base conversion 81660900

Base System Value
2 Binary 100110111100000101111100100
3 Ternary 12200122210200210
4 Quaternary 10313200233210
5 Quinary 131401122100
6 Senary 12034135420
8 Octal 467405744
10 Decimal 81660900
12 Duodecimal 23421570
16 Hexadecimal 4de0be4
20 Vigesimal 15a7c50
36 Base36 1cm9yc

Cryptographic Hash Functions

md5 36876f32eb8971d21cdabeb36d8450ed
sha1 b8168965eaef55231931fb936520a5302b458326
sha256 da9921dbc49a32be3fa5dfeef058a7ce36592483507503a0acc978f4ec7cb4cd
sha512 b4ac0719311e5d8fe672c2c8d4e1bc3dd61e918dde8d8aeff7e934c30b2b3ed7152c69349c28f1eed85d4deab4f8869e0e54a606044c0e0697c3aad4f1ba18bc
ripemd-160 c9a6f13b67d1ead53cb677fe7b8672daf4c7571e

81660900 as geometric shapes

Circle

Radius = n
Diameter 163321800
Circumference 513090567.05106
Area 2.094971874345E+16

Sphere

Radius = n
Volume 2.2810305164493E+24
Surface area 8.37988749738E+16
Circumference 513090567.05106

Square

Length = n
Perimeter 326643600
Area 6668502588810000
Diagonal 115485952.29559

Cube

Length = n
Surface area 40011015532860000
Volume 5.4455592305455E+23
Space diagonal 141440827.7918

Equilateral Triangle

Length = n
Perimeter 244982700
Area 2.8875463235559E+15
Altitude 70720413.895901

Triangular Pyramid

Length = n
Surface area 2.8875463235559E+15
Volume 6.4176530987863E+22
Height 38495317.431864