81878032 is an even 8-digits composite number following 81878031
and preceding 81878033 . In scientific notation, it is written as 8.1878032 × 10^7.
The sum of its digits is 37. It has a total of 5 prime factors and 10 positive divisors.
There are 40939008 positive integers (up to 81878032) that are relatively prime to 81878032.
81878032 has 10 divisors, whose sum is 158638718
The reverse of 81878032 is 23087818
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million eight hundred seventy-eight thousand thirty-two
Scientific notation
8.1878032 × 10^7
Engineering notation
8.1878032 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 5117377
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10234754
Product of the distinct prime numbers
The prime factorization of 81878032 is 2 × 2 × 2 × 2 × 5117377.
Since it has a total of 5 prime factors.
7 , 10 , 76 , 56 , 129 , 35 , 7026 , 2944 , 98962 , 23164 , 580948 , 702311 , 1675256 , 1727895 , 93192118 , 68723315 , 242742429 , 82026355 , 1350469736 , 8910795642
n×2
163756064
n×3
245634096
n×4
327512128
n×5
409390160
n÷2
40939016
n÷3
27292677.333333
n÷3
20469508
n÷5
16375606.4
n2
6704012124193024
n3
5.4891131923306E+23
n4
4.4943778561327E+31
n5
3.6799081392453E+39
2 √n
9048.6480758177
3 √n
434.23264018008
4 √n
95.12438213107
5 √n
38.250179637204
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81878031
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81878032 can be divided by 10 positive divisors.
The sum of these divisors (counting 81878032) is 1, the average is 0.1.
Base
System
Value
2
Binary
100111000010101110000010000
3
Ternary
12201001211112201
4
Quaternary
10320111300100
5
Quinary
131430044112
6
Senary
12042532544
8
Octal
470256020
10
Decimal
81878032
12
Duodecimal
23507154
16
Hexadecimal
4e15c10
20
Vigesimal
15bef1c
36
Base36
1cqxhs
md5
935edb489e53d3c85ea89eaebdbab795
sha1
366dc20140fe37bfb14f1a7a5022ccd26579a410
sha256
9108e0bd176053159cf216706c69339159981c38604842d13da9eb0c0f315563
sha512
6fcf93dd8cd1a1b6c81d6dcf774090c443fa77e33e9291a3a1c239ad6e4b83b14d975f64875ad7e99548b9497bd4afe03eb195fe21300c9ab336703b0218cdd0
ripemd-160
52f1383747c8ca064e5f6669d2b0c7126b2cced3
Diameter
163756064
Circumference
514454847.64318
Area
2.1061275238942E+16
Volume
2.2992743572998E+24
Surface area
8.4245100955767E+16
Circumference
514454847.64318
Perimeter
327512128
Area
6704012124193024
Diagonal
115793023.31482
Surface area
40224072745158144
Volume
5.4891131923306E+23
Space diagonal
141816911.44775
Perimeter
245634096
Area
2.902922403415E+15
Altitude
70908455.723875
Surface area
2.902922403415E+15
Volume
6.4689819349959E+22
Height
38597674.438273