81252010 is an even 8-digits composite number following 81252009
and preceding 81252011 . In scientific notation, it is written as 8.1252010 × 10^7.
The sum of its digits is 19. It has a total of 4 prime factors and 16 positive divisors.
There are 26218752 positive integers (up to 81252010) that are relatively prime to 81252010.
81252010 has 16 divisors, whose sum is 140929920
The reverse of 81252010 is 01025218
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
eighty-one million two hundred fifty-two thousand ten
Scientific notation
8.1252010 × 10^7
Engineering notation
8.1252010 × 10^6
Prime Factorization
2 × 85 × 7 × 68279
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81252010
Product of the distinct prime numbers
The prime factorization of 81252010 is 2 × 85 × 7 × 68279.
Since it has a total of 4 prime factors.
9 , 2 , 25 , 1 , 594 , 333 , 3716 , 5357 , 66592 , 49408 , 559200 , 912063 , 6687968 , 3320186 , 87799026 , 65726274 , 158144613 , 919530248 , 9138558111 , 7157758355
n×2
162504020
n×3
243756030
n×4
325008040
n×5
406260050
n÷2
40626005
n÷3
27084003.333333
n÷3
20313002.5
n÷5
16250402
n2
6601889129040100
n3
5.3641676153166E+23
n4
4.3584940072138E+31
n5
3.5413639865907E+39
2 √n
9013.9896827099
3 √n
433.12312421147
4 √n
94.942033276678
5 √n
38.191509383734
1 , 2 , 7 , 14 , 85 , 170 , 595 , 1190 , 68279 , 136558 , 477953 , 955906 , 5803715 , 11607430 , 40626005 , 81252010
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81252009
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81252010 can be divided by 16 positive divisors.
The sum of these divisors (counting 81252010) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101111100111010101010
3
Ternary
12122220000210201
4
Quaternary
10311330322222
5
Quinary
131300031020
6
Senary
12021302414
8
Octal
465747252
10
Decimal
81252010
12
Duodecimal
23264a0a
16
Hexadecimal
4d7ceaa
20
Vigesimal
157ga0a
36
Base36
1cdiga
md5
b27d5c048849a2bf77578a4c1e537327
sha1
7ea93c9ba64137c4d4be5159698a4f6618aef6c6
sha256
319e9b43fb4fc94bdbc90e1ddb59bb65c4e7518f92c0e0fd354cc40bc6cbda51
sha512
c9c90e07d64242c82dae4346f003622a755ce1b6c611d0134671e2a9207c8733ad9b6c7a3898082da615b642f6c1f7997e0538831a537aa08ea04beb60a117dc
ripemd-160
5eac237a14e47fbf6bce137ac45cc9d52119a90f
Diameter
162504020
Circumference
510521435.41081
Area
2.0740446387607E+16
Volume
2.246937276387E+24
Surface area
8.2961785550427E+16
Circumference
510521435.41081
Perimeter
325008040
Area
6601889129040100
Diagonal
114907694.51207
Surface area
39611334774240600
Volume
5.3641676153166E+23
Space diagonal
140732609.53709
Perimeter
243756030
Area
2.8587018493585E+15
Altitude
70366304.768547
Surface area
2.8587018493585E+15
Volume
6.3217321603527E+22
Height
38302564.837358