81288331 (number)

81288331 is an odd 8-digits prime number following 81288330 and preceding 81288332. In scientific notation, it is written as 8.1288331 × 10^7. The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors. There are 81288330 positive integers (up to 81288331) that are relatively prime to 81288331.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred eighty-eight thousand three hundred thirty-one

Notation

Scientific notation 8.1288331 × 10^7
Engineering notation 8.1288331 × 10^6

Prime Factorization of 81288331

Prime Factorization 81288331

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 81288331
Product of the distinct prime numbers

The prime factorization of 81288331 is 81288331. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81288331)

Multiplication

n×y
n×2 162576662
n×3 243864993
n×4 325153324
n×5 406441655

Division

n÷y
n÷2 40644165.5
n÷3 27096110.333333
n÷3 20322082.75
n÷5 16257666.2

Exponentiation

ny
n2 6607792756765561
n3 5.3713644479136E+23
n4 4.3662925116363E+31
n5 3.5492863092872E+39

Nth Root

y√n
2√n 9016.0041592714
3√n 433.18765234437
4√n 94.952641665577
5√n 38.194923221364

Divisors of 81288331

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 81288332
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 40644166
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 9016.0042147284
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999753962
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81288331 can be divided by 2 positive divisors. The sum of these divisors (counting 81288331) is 81288332, the average is 40644166.

Base conversion 81288331

Base System Value
2 Binary 100110110000101110010001011
3 Ternary 12122221212121221
4 Quaternary 10312011302023
5 Quinary 131302211311
6 Senary 12022142511
8 Octal 466056213
10 Decimal 81288331
12 Duodecimal 23281a37
16 Hexadecimal 4d85c8b
20 Vigesimal 15810gb
36 Base36 1ceah7

Cryptographic Hash Functions

md5 05bd58cb2dcf67c54439cb0e9d939a35
sha1 3281bc03799c0b83cdf2e13716bf8ad836ecbff3
sha256 59bd71cd5d55971f83e95d7bd7bc5f644ad762bd282e9dfe8b64ccbd8576047b
sha512 f7ffbce4e20acb78cca9b53e34c74abc40ade2fefc56f63d6f1feb25f3e0d0db0f50a5ff6c5d754b35dd4f3867483d1b176990833f6fad50d0b37c0e1b31a545
ripemd-160 2951c464880a96c9420c7f775c7c5829fcc762f6

81288331 as geometric shapes

Circle

Radius = n
Diameter 162576662
Circumference 510749646.98435
Area 2.0758993181099E+16

Sphere

Radius = n
Volume 2.2499518785758E+24
Surface area 8.3035972724394E+16
Circumference 510749646.98435

Square

Length = n
Perimeter 325153324
Area 6607792756765561
Diagonal 114959060.16287

Cube

Length = n
Surface area 39646756540593366
Volume 5.3713644479136E+23
Space diagonal 140795519.35448

Equilateral Triangle

Length = n
Perimeter 243864993
Area 2.8612581951509E+15
Altitude 70397759.677238

Triangular Pyramid

Length = n
Surface area 2.8612581951509E+15
Volume 6.3302137089068E+22
Height 38319686.720958