81129410 is an even 8-digits composite number following 81129409
and preceding 81129411 . In scientific notation, it is written as 8.1129410 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 32451760 positive integers (up to 81129410) that are relatively prime to 81129410.
81129410 has 8 divisors, whose sum is 146032956
The reverse of 81129410 is 01492118
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million one hundred twenty-nine thousand four hundred ten
Scientific notation
8.1129410 × 10^7
Engineering notation
8.1129410 × 10^6
Prime Factorization
2 × 5 × 8112941
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81129410
Product of the distinct prime numbers
The prime factorization of 81129410 is 2 × 5 × 8112941.
Since it has a total of 3 prime factors.
6 , 9 , 27 , 98 , 837 , 902 , 4277 , 24 , 14974 , 39884 , 759637 , 787065 , 6403659 , 1472057 , 61715266 , 85841380 , 355766400 , 995505669 , 9933277380 , 9357755800
n×2
162258820
n×3
243388230
n×4
324517640
n×5
405647050
n÷2
40564705
n÷3
27043136.666667
n÷3
20282352.5
n÷5
16225882
n2
6581981166948100
n3
5.3399224870561E+23
n4
4.3322476082059E+31
n5
3.5147269242766E+39
2 √n
9007.1865751743
3 √n
432.90517011545
4 √n
94.906198823756
5 √n
38.179977096418
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
-81129409
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 81129410 can be divided by 8 positive divisors.
The sum of these divisors (counting 81129410) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011110111111000010
3
Ternary
12122122210121222
4
Quaternary
10311132333002
5
Quinary
131232120120
6
Senary
12014515042
8
Octal
465367702
10
Decimal
81129410
12
Duodecimal
23205a82
16
Hexadecimal
4d5efc2
20
Vigesimal
15713aa
36
Base36
1cavuq
md5
27f65507d8f62b58db54e86fd21dd57e
sha1
f0753c70863aa469686da5e9a50d2384582d81f8
sha256
f32f5ab774dfc4fee49809ed9740286de03e733331d3e82b5334dfd6a260894b
sha512
0377053c68ca83c998363dd8e93aeb5d09b64dcbacc842d0c1275b61f97495a6277088299183c4975568171274e8797b1f6598925468b06d14dd2bea29f92b5d
ripemd-160
fe060fe88b470e11e3e8352acf9faf54da02697c
Diameter
162258820
Circumference
509751116.89215
Area
2.0677903680151E+16
Volume
2.2367815008099E+24
Surface area
8.2711614720602E+16
Circumference
509751116.89215
Perimeter
324517640
Area
6581981166948100
Diagonal
114734311.92933
Surface area
39491887001688600
Volume
5.3399224870561E+23
Space diagonal
140520260.10809
Perimeter
243388230
Area
2.8500814489039E+15
Altitude
70260130.054043
Surface area
2.8500814489039E+15
Volume
6.2931590026798E+22
Height
38244770.643109