81462021 (number)

81462021 is an odd 8-digits composite number following 81462020 and preceding 81462022. In scientific notation, it is written as 8.1462021 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 51620976 positive integers (up to 81462021) that are relatively prime to 81462021.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred sixty-two thousand twenty-one

Notation

Scientific notation 8.1462021 × 10^7
Engineering notation 8.1462021 × 10^6

Prime Factorization of 81462021

Prime Factorization 3 × 23 × 163 × 7243

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81462021
Product of the distinct prime numbers

The prime factorization of 81462021 is 3 × 23 × 163 × 7243. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 5, 76, 5, 9, 689, 7051, 696, 20557, 43744, 88707, 506397, 332320, 7948386, 76569790, 68093332, 116704082, 287784180, 9449693450, 6178619094

Basic calculations (n = 81462021)

Multiplication

n×y
n×2 162924042
n×3 244386063
n×4 325848084
n×5 407310105

Division

n÷y
n÷2 40731010.5
n÷3 27154007
n÷3 20365505.25
n÷5 16292404.2

Exponentiation

ny
n2 6636060865404441
n3 5.4058692957485E+23
n4 4.4037303809352E+31
n5 3.5873677677008E+39

Nth Root

y√n
2√n 9025.6313352585
3√n 433.49596571425
4√n 95.003322759041
5√n 38.211231622186

Divisors of 81462021

1, 3, 23, 69, 163, 489, 3749, 7243, 11247, 21729, 166589, 499767, 1180609, 3541827, 27154007, 81462021

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 -81462020
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 81462021 can be divided by 16 positive divisors. The sum of these divisors (counting 81462021) is 1, the average is 0.0625.

Base conversion 81462021

Base System Value
2 Binary 100110110110000001100000101
3 Ternary 12200021200212220
4 Quaternary 10312300030011
5 Quinary 131323241041
6 Senary 12030002553
8 Octal 466601405
10 Decimal 81462021
12 Duodecimal 23346459
16 Hexadecimal 4db0305
20 Vigesimal 1592f11
36 Base36 1ci0hx

Cryptographic Hash Functions

md5 2a9bebce4296869a519fa719703ae473
sha1 65065ac0975a3d135bd5af8c3c857baa53cde96a
sha256 5663cbf54850d1f958269bfb94379e6286a9eeb879138fcef918011450376492
sha512 96b0e7bde43ef5b66c72b57a167689827a8ff42b6b6e33e16342a237f44213a3a61bff11f32a355956e3121edf1255c2a8aa9c029d2bb7b9d362161dda24cb6e
ripemd-160 30812ca153e5b1a5955aff45ed816ecc66168ce7

81462021 as geometric shapes

Circle

Radius = n
Diameter 162924042
Circumference 511840973.44035
Area 2.0847800063529E+16

Sphere

Radius = n
Volume 2.2644052354387E+24
Surface area 8.3391200254117E+16
Circumference 511840973.44035

Square

Length = n
Perimeter 325848084
Area 6636060865404441
Diagonal 115204694.91652

Cube

Length = n
Surface area 39816365192426646
Volume 5.4058692957485E+23
Space diagonal 141096359.25924

Equilateral Triangle

Length = n
Perimeter 244386063
Area 2.87349864525E+15
Altitude 70548179.629621

Triangular Pyramid

Length = n
Surface area 2.87349864525E+15
Volume 6.3708780620532E+22
Height 38401564.972174