81356 (number)

81356 is an even 5-digits composite number following 81355 and preceding 81357. In scientific notation, it is written as 8.1356 × 10^4. The sum of its digits is 23. It has a total of 5 prime factors and 18 positive divisors. There are 36120 positive integers (up to 81356) that are relatively prime to 81356.

Interesting facts

Basic properties

Name

Name eighty-one thousand three hundred fifty-six

Notation

Scientific notation 8.1356 × 10^4
Engineering notation 8.1356 × 10^3

Prime Factorization of 81356

Prime Factorization 2 × 2 × 11 × 43 × 43

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 946
Product of the distinct prime numbers

The prime factorization of 81356 is 2 × 2 × 11 × 43 × 43. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 7, 23, 100, 479, 655, 2847, 1172, 66326, 89835, 48344, 273648, 4262174, 5801774, 89982031, 18818315, 991532906, 38554659, 9372681490, 8178585422

Basic calculations (n = 81356)

Multiplication

n×y
n×2 162712
n×3 244068
n×4 325424
n×5 406780

Division

n÷y
n÷2 40678
n÷3 27118.666666667
n÷3 20339
n÷5 16271.2

Exponentiation

ny
n2 6618798736
n3 538478989966016
n4 4.3808496707675E+19
n5 3.5640840581496E+24

Nth Root

y√n
2√n 285.22973197056
3√n 43.330782229828
4√n 16.888745719282
5√n 9.5957277469527

Divisors of 81356

1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1849, 1892, 3698, 7396, 20339, 40678, 81356

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81355
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81356 can be divided by 18 positive divisors. The sum of these divisors (counting 81356) is 1, the average is 0.055555555555556.

Base conversion 81356

Base System Value
2 Binary 10011110111001100
3 Ternary 11010121012
4 Quaternary 103313030
5 Quinary 10100411
6 Senary 1424352
8 Octal 236714
10 Decimal 81356
12 Duodecimal 3b0b8
16 Hexadecimal 13dcc
20 Vigesimal a37g
36 Base36 1qrw

Cryptographic Hash Functions

md5 c1a80e2c0ed9c4e9e686b61220b84260
sha1 9fc50b76f36f52b9aaa85c909acdcbc37ee2fb76
sha256 ec1636caf9d3c2e2952252c493e88dd7f321b7dd83ebfd33f8794c795a9e142c
sha512 46bb368df474cc7bae8fe44d7e938d00113d9fcf20ed4b26f9483f5d2f6d1d107db59d2a77667b8141dacb1bf2d2e0320b096f9fb387b8271fa66deddf6e5fa6
ripemd-160 d354da6a1c63924ace9df46e7ca2981d582ed8c7

81356 as geometric shapes

Circle

Radius = n
Diameter 162712
Circumference 511174.8238509
Area 20793569484.607

Sphere

Radius = n
Volume 2.2555755186529E+15
Surface area 83174277938.428
Circumference 511174.8238509

Square

Length = n
Perimeter 325424
Area 6618798736
Diagonal 115054.75858043

Cube

Length = n
Surface area 39712792416
Volume 538478989966016
Space diagonal 140912.72550057

Equilateral Triangle

Length = n
Perimeter 244068
Area 2866023923.9562
Altitude 70456.362750287

Triangular Pyramid

Length = n
Surface area 2866023923.9562
Volume 63460357555242
Height 38351.586193475