81237 (number)

81237 is an odd 5-digits composite number following 81236 and preceding 81238. In scientific notation, it is written as 8.1237 × 10^4. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 49968 positive integers (up to 81237) that are relatively prime to 81237.

Interesting facts

Basic properties

Name

Name eighty-one thousand two hundred thirty-seven

Notation

Scientific notation 8.1237 × 10^4
Engineering notation 8.1237 × 10^3

Prime Factorization of 81237

Prime Factorization 3 × 13 × 2083

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81237
Product of the distinct prime numbers

The prime factorization of 81237 is 3 × 13 × 2083. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 4, 78, 9, 806, 721, 9177, 5401, 3794, 87751, 294617, 150547, 1391231, 6283279, 61907786, 35753440, 70796812, 895549777, 8721595867, 4738678609

Basic calculations (n = 81237)

Multiplication

n×y
n×2 162474
n×3 243711
n×4 324948
n×5 406185

Division

n÷y
n÷2 40618.5
n÷3 27079
n÷3 20309.25
n÷5 16247.4

Exponentiation

ny
n2 6599450169
n3 536119533379053
n4 4.3552742533114E+19
n5 3.5380941451626E+24

Nth Root

y√n
2√n 285.02105185407
3√n 43.309645172888
4√n 16.882566506727
5√n 9.5929189552471

Divisors of 81237

1, 3, 13, 39, 2083, 6249, 27079, 81237

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81236
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81237 can be divided by 8 positive divisors. The sum of these divisors (counting 81237) is 1, the average is 0.125.

Base conversion 81237

Base System Value
2 Binary 10011110101010101
3 Ternary 11010102210
4 Quaternary 103311111
5 Quinary 10044422
6 Senary 1424033
8 Octal 236525
10 Decimal 81237
12 Duodecimal 3b019
16 Hexadecimal 13d55
20 Vigesimal a31h
36 Base36 1qol

Cryptographic Hash Functions

md5 e590247c5055c431fa307287413e2254
sha1 89fc955f54a1a46386ab714d0aa2fa1a69312123
sha256 d1fdd7768e9fd826bde6e890e8f2ed791eaf242c4fcad81c63bdae16bc30847b
sha512 706f48d7216f832502cfac300d358279a417b39d3b134410deefd6ab520cae422f34333c92029785a7c05fe721e7e794ab72a1bf9adc04be804914543261b318
ripemd-160 b008baee4629b3214fbd11c62d04edd776ec9abf

81237 as geometric shapes

Circle

Radius = n
Diameter 162474
Circumference 510427.12479935
Area 20732784168.662

Sphere

Radius = n
Volume 2.2456922500128E+15
Surface area 82931136674.649
Circumference 510427.12479935

Square

Length = n
Perimeter 324948
Area 6599450169
Diagonal 114886.4671665

Cube

Length = n
Surface area 39596701014
Volume 536119533379053
Space diagonal 140706.61145447

Equilateral Triangle

Length = n
Perimeter 243711
Area 2857645748.6818
Altitude 70353.305727236

Triangular Pyramid

Length = n
Surface area 2857645748.6818
Volume 63182292929816
Height 38295.489055501