81296188 is an even 8-digits composite number following 81296187
and preceding 81296189 . In scientific notation, it is written as 8.1296188 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors.
There are 40374992 positive integers (up to 81296188) that are relatively prime to 81296188.
81296188 has 12 divisors, whose sum is 143224200
The reverse of 81296188 is 88169218
Previous prime number is 149
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighty-one million two hundred ninety-six thousand one hundred eighty-eight
Scientific notation
8.1296188 × 10^7
Engineering notation
8.1296188 × 10^6
Prime Factorization
2 × 2 × 149 × 136403
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
40648094
Product of the distinct prime numbers
The prime factorization of 81296188 is 2 × 2 × 149 × 136403.
Since it has a total of 4 prime factors.
6 , 1 , 26 , 22 , 627 , 747 , 9773 , 4900 , 17109 , 52327 , 120391 , 927289 , 7970271 , 2095047 , 48873775 , 36110870 , 386289425 , 426962368 , 3727362626 , 1761371561
n×2
162592376
n×3
243888564
n×4
325184752
n×5
406480940
n÷2
40648094
n÷3
27098729.333333
n÷3
20324047
n÷5
16259237.6
n2
6609070183331344
n3
5.372922121293E+23
n4
4.3679808688199E+31
n5
3.5510019389199E+39
2 √n
9016.4398739192
3 √n
433.20160861456
4 √n
94.954936016614
5 √n
38.195661546057
1 , 2 , 4 , 149 , 298 , 596 , 136403 , 272806 , 545612 , 20324047 , 40648094 , 81296188
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
-81296187
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 81296188 can be divided by 12 positive divisors.
The sum of these divisors (counting 81296188) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110110000111101100111100
3
Ternary
12122222021101221
4
Quaternary
10312013230330
5
Quinary
131302434223
6
Senary
12022243124
8
Octal
466075474
10
Decimal
81296188
12
Duodecimal
232864a4
16
Hexadecimal
4d87b3c
20
Vigesimal
1582098
36
Base36
1cegjg
md5
dc883cdba1f6d93dc24f7b6cec08bc6a
sha1
e85f9515861590a312012fd88f90d8ba6071d0c9
sha256
5c7e5285ce20b2b308031d80dd3f7e94184c183208fd9be38af1cd60a171eacd
sha512
08fef093efd639bcc66f05973b7edb5db54b2dbf9e5a79cdc86e478349f177431af2d3c73752034600ba32ea1d91d14fea4d639d7503bd444fa94907210aa62a
ripemd-160
c6d9bcc86bccbc7f07c18f7e331795e1ba1b0ddd
Diameter
162592376
Circumference
510799013.97131
Area
2.0763006335013E+16
Volume
2.2506043552752E+24
Surface area
8.3052025340052E+16
Circumference
510799013.97131
Perimeter
325184752
Area
6609070183331344
Diagonal
114970171.63883
Surface area
39654421099988064
Volume
5.372922121293E+23
Space diagonal
140809128.07767
Perimeter
243888564
Area
2.8618113370796E+15
Altitude
70404564.038836
Surface area
2.8618113370796E+15
Volume
6.3320494445891E+22
Height
38323390.546278