81689982 (number)

81689982 is an even 8-digits composite number following 81689981 and preceding 81689983. In scientific notation, it is written as 8.1689982 × 10^7. The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors. There are 24754520 positive integers (up to 81689982) that are relatively prime to 81689982.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred eighty-nine thousand nine hundred eighty-two

Notation

Scientific notation 8.1689982 × 10^7
Engineering notation 8.1689982 × 10^6

Prime Factorization of 81689982

Prime Factorization 2 × 3 × 11 × 1237727

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81689982
Product of the distinct prime numbers

The prime factorization of 81689982 is 2 × 3 × 11 × 1237727. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 8, 38, 72, 755, 867, 8581, 6233, 83658, 90205, 151326, 937633, 7273925, 7011077, 54265856, 83347790, 53505537, 903064132, 2094596927, 3651391178

Basic calculations (n = 81689982)

Multiplication

n×y
n×2 163379964
n×3 245069946
n×4 326759928
n×5 408449910

Division

n÷y
n÷2 40844991
n÷3 27229994
n÷3 20422495.5
n÷5 16337996.4

Exponentiation

ny
n2 6673253159160324
n3 5.4513793045325E+23
n4 4.4532307726243E+31
n5 3.6378434165753E+39

Nth Root

y√n
2√n 9038.2510476308
3√n 433.89995003785
4√n 95.069716774748
5√n 38.232593568592

Divisors of 81689982

1, 2, 3, 6, 11, 22, 33, 66, 1237727, 2475454, 3713181, 7426362, 13614997, 27229994, 40844991, 81689982

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 -81689981
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 81689982 can be divided by 16 positive divisors. The sum of these divisors (counting 81689982) is 1, the average is 0.0625.

Base conversion 81689982

Base System Value
2 Binary 100110111100111110101111110
3 Ternary 12200201021120220
4 Quaternary 10313213311332
5 Quinary 131403034412
6 Senary 12034522210
8 Octal 467476576
10 Decimal 81689982
12 Duodecimal 23436366
16 Hexadecimal 4de7d7e
20 Vigesimal 15ab4j2
36 Base36 1cmwe6

Cryptographic Hash Functions

md5 e68abca2850efbd0414a1fe48de42c95
sha1 bc49f0a7a0fa1565da39e126bf1b8cdb039e7633
sha256 46930c022181b4f49e25d9a20e1a36053d784d743ed5a744ec3343863e8a96a0
sha512 7e5a422ac057f9570307ce1c183b4adf58b6fd5171b08195c0c6b5258eca3e402ae7ea5b92b16fc484cc58f214fde4e59bc8c8aa79b93b3f35a605381d931b8d
ripemd-160 2878f419f55bd470e03209c2f0dd79b76c677b48

81689982 as geometric shapes

Circle

Radius = n
Diameter 163379964
Circumference 513273294.64616
Area 2.0964643100363E+16

Sphere

Radius = n
Volume 2.2834684233401E+24
Surface area 8.3858572401452E+16
Circumference 513273294.64616

Square

Length = n
Perimeter 326759928
Area 6673253159160324
Diagonal 115527080.45441

Cube

Length = n
Surface area 40039518954961944
Volume 5.4513793045325E+23
Space diagonal 141491199.29339

Equilateral Triangle

Length = n
Perimeter 245069946
Area 2.8896033808588E+15
Altitude 70745599.646694

Triangular Pyramid

Length = n
Surface area 2.8896033808588E+15
Volume 6.4245121217582E+22
Height 38509026.818138