81293722 is an even 8-digits composite number following 81293721
and preceding 81293723 . In scientific notation, it is written as 8.1293722 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 40074300 positive integers (up to 81293722) that are relatively prime to 81293722.
81293722 has 8 divisors, whose sum is 123658272
The reverse of 81293722 is 22739218
Previous prime number is 71
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million two hundred ninety-three thousand seven hundred twenty-two
Scientific notation
8.1293722 × 10^7
Engineering notation
8.1293722 × 10^6
Prime Factorization
2 × 71 × 572491
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81293722
Product of the distinct prime numbers
The prime factorization of 81293722 is 2 × 71 × 572491.
Since it has a total of 3 prime factors.
5 , 1 , 1 , 42 , 980 , 24 , 4264 , 3149 , 55809 , 68380 , 828934 , 395817 , 6510761 , 7962593 , 41636812 , 36132121 , 33962588 , 334578284 , 9644926642 , 7764189547
n×2
162587444
n×3
243881166
n×4
325174888
n×5
406468610
n÷2
40646861
n÷3
27097907.333333
n÷3
20323430.5
n÷5
16258744.4
n2
6608669236613284
n3
5.3724331971119E+23
n4
4.3674509078959E+31
n5
3.5504633995514E+39
2 √n
9016.3031226773
3 √n
433.19722839291
4 √n
94.954215928927
5 √n
38.19542982143
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
-81293721
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 81293722 can be divided by 8 positive divisors.
The sum of these divisors (counting 81293722) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110000111000110011010
3
Ternary
12122222011000121
4
Quaternary
10312013012122
5
Quinary
131302344342
6
Senary
12022223454
8
Octal
466070632
10
Decimal
81293722
12
Duodecimal
23284b8a
16
Hexadecimal
4d8719a
20
Vigesimal
1581e62
36
Base36
1ceemy
md5
23b0c7930d86e955ba37bab68389728b
sha1
d26c38e8a8c7305d4644420e20192d5c8efc9c76
sha256
6068d7771a664b5f09cf3b9efbb651909499e60ad5bee648e0d8fd73fc19d4f2
sha512
4315522500d4063dfb1f95be9c9ad969a1516a2daabf0f28e58f553d2e12bb0284c7ae7de9c3c4815896a7a218d7b6eb278125a7d5667dc5c7ba3f14dc83a5e6
ripemd-160
45c8f7c5e5573ecd00bb9ebf65f6bdf20ea0a518
Diameter
162587444
Circumference
510783519.63634
Area
2.0761746723749E+16
Volume
2.2503995551932E+24
Surface area
8.3046986894997E+16
Circumference
510783519.63634
Perimeter
325174888
Area
6608669236613284
Diagonal
114966684.18819
Surface area
39652015419679704
Volume
5.3724331971119E+23
Space diagonal
140804856.84038
Perimeter
243881166
Area
2.8616377220579E+15
Altitude
70402428.42019
Surface area
2.8616377220579E+15
Volume
6.3314732419159E+22
Height
38322228.062729