81584420 (number)

81584420 is an even 8-digits composite number following 81584419 and preceding 81584421. In scientific notation, it is written as 8.1584420 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors. There are 32633760 positive integers (up to 81584420) that are relatively prime to 81584420.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred eighty-four thousand four hundred twenty

Notation

Scientific notation 8.1584420 × 10^7
Engineering notation 8.1584420 × 10^6

Prime Factorization of 81584420

Prime Factorization 2 × 2 × 5 × 4079221

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40792210
Product of the distinct prime numbers

The prime factorization of 81584420 is 2 × 2 × 5 × 4079221. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 1, 56, 90, 478, 734, 6163, 8318, 97412, 307, 392808, 128801, 2840198, 3565568, 71992080, 18617264, 684320874, 620529954, 8070442594, 3360578240

Basic calculations (n = 81584420)

Multiplication

n×y
n×2 163168840
n×3 244753260
n×4 326337680
n×5 407922100

Division

n÷y
n÷2 40792210
n÷3 27194806.666667
n÷3 20396105
n÷5 16316884

Exponentiation

ny
n2 6656017586736400
n3 5.4302733432369E+23
n4 4.4302570114944E+31
n5 3.6143994873371E+39

Nth Root

y√n
2√n 9032.409423847
3√n 433.7129703984
4√n 95.038988966881
5√n 38.222707419308

Divisors of 81584420

1, 2, 4, 5, 10, 20, 4079221, 8158442, 16316884, 20396105, 40792210, 81584420

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81584419
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81584420 can be divided by 12 positive divisors. The sum of these divisors (counting 81584420) is 1, the average is 0.083333333333333.

Base conversion 81584420

Base System Value
2 Binary 100110111001110000100100100
3 Ternary 12200111220210012
4 Quaternary 10313032010210
5 Quinary 131341200140
6 Senary 12032345352
8 Octal 467160444
10 Decimal 81584420
12 Duodecimal 233a5258
16 Hexadecimal 4dce124
20 Vigesimal 159i110
36 Base36 1ckmxw

Cryptographic Hash Functions

md5 af6d39e3c1f0acbc6b1119ac6689cf04
sha1 a8f54b47708e8ed837d1ab49bfb9640b4ba64b18
sha256 cd2352509c3158588ac05608b46214bbe3decc33ebbfe94e5fc64d0f3bd4896e
sha512 bcc5ed917e628e6dac541ffd9fb0128c43e2ea40224cd22e341f28b3a81d3140f33670f03e0c0e6dfc39045527971f9e5632f3bf2ad3118a63eadf92c81efd3a
ripemd-160 f706a6737d9423781910946dbc1bce20e9fef635

81584420 as geometric shapes

Circle

Radius = n
Diameter 163168840
Circumference 512610029.03877
Area 2.0910495952656E+16

Sphere

Radius = n
Volume 2.2746275789463E+24
Surface area 8.3641983810622E+16
Circumference 512610029.03877

Square

Length = n
Perimeter 326337680
Area 6656017586736400
Diagonal 115377793.24234

Cube

Length = n
Surface area 39936105520418400
Volume 5.4302733432369E+23
Space diagonal 141308360.54604

Equilateral Triangle

Length = n
Perimeter 244753260
Area 2.8821401590749E+15
Altitude 70654180.273019

Triangular Pyramid

Length = n
Surface area 2.8821401590749E+15
Volume 6.3996385078322E+22
Height 38459264.414114