81013 (number)

81013 is an odd 5-digits prime number following 81012 and preceding 81014. In scientific notation, it is written as 8.1013 × 10^4. The sum of its digits is 13. It has a total of 1 prime factors and 2 positive divisors. There are 81012 positive integers (up to 81013) that are relatively prime to 81013.

Interesting facts

Basic properties

Name

Name eighty-one thousand thirteen

Notation

Scientific notation 8.1013 × 10^4
Engineering notation 8.1013 × 10^3

Prime Factorization of 81013

Prime Factorization 81013

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 81013
Product of the distinct prime numbers

The prime factorization of 81013 is 81013. Since it has a total of 1 prime factors.

Most popular turbo-numbers

3, 3, 79, 74, 470, 264, 5010, 4956, 48364, 61381, 356088, 662217, 7833006, 6580069, 19452320, 22259558, 980037767, 201414053, 4338215694, 6385256422

Basic calculations (n = 81013)

Multiplication

n×y
n×2 162026
n×3 243039
n×4 324052
n×5 405065

Division

n÷y
n÷2 40506.5
n÷3 27004.333333333
n÷3 20253.25
n÷5 16202.6

Exponentiation

ny
n2 6563106169
n3 531696920069197
n4 4.3074362585566E+19
n5 3.4895833361444E+24

Nth Root

y√n
2√n 284.62782717085
3√n 43.269801706933
4√n 16.870916607311
5√n 9.5876228763678

Divisors of 81013

1, 81013

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 81014
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 40507
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 284.62958384539
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999753129089
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81013 can be divided by 2 positive divisors. The sum of these divisors (counting 81013) is 81014, the average is 40507.

Base conversion 81013

Base System Value
2 Binary 10011110001110101
3 Ternary 11010010111
4 Quaternary 103301311
5 Quinary 10043023
6 Senary 1423021
8 Octal 236165
10 Decimal 81013
12 Duodecimal 3aa71
16 Hexadecimal 13c75
20 Vigesimal a2ad
36 Base36 1qid

Cryptographic Hash Functions

md5 ccb5f8b3e4334cba3ba8a7e81f09eed9
sha1 9f604ee6d1ad6ccf4f2e5e03e5aec0ec8fe18754
sha256 a13320910a3c3871d77709286c78b89aa2b80f4fc9d56b4994f39f6093f45cbf
sha512 350cca33b1e01dcc17161322f748c65d64562084fc58f325fc0412257e5908cefa0e8164ecfb6e2399d973c7547595d4319b7435f979f56df0635f47e612b59e
ripemd-160 3feb13d10f6150ed6dc7fd8e74543b0bb65ec5ae

81013 as geometric shapes

Circle

Radius = n
Diameter 162026
Circumference 509019.69129054
Area 20618606125.26

Sphere

Radius = n
Volume 2.2271668507009E+15
Surface area 82474424501.041
Circumference 509019.69129054

Square

Length = n
Perimeter 324052
Area 6563106169
Diagonal 114569.68332853

Cube

Length = n
Surface area 39378637014
Volume 531696920069197
Space diagonal 140318.63207358

Equilateral Triangle

Length = n
Perimeter 243039
Area 2841908335.0442
Altitude 70159.316036789

Triangular Pyramid

Length = n
Surface area 2841908335.0442
Volume 62661082952822
Height 38189.894442844