81640122 is an even 8-digits composite number following 81640121
and preceding 81640123 . In scientific notation, it is written as 8.1640122 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 27213372 positive integers (up to 81640122) that are relatively prime to 81640122.
81640122 has 8 divisors, whose sum is 163280256
The reverse of 81640122 is 22104618
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
eighty-one million six hundred forty thousand one hundred twenty-two
Scientific notation
8.1640122 × 10^7
Engineering notation
8.1640122 × 10^6
Prime Factorization
2 × 3 × 13606687
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81640122
Product of the distinct prime numbers
The prime factorization of 81640122 is 2 × 3 × 13606687.
Since it has a total of 3 prime factors.
8 , 2 , 12 , 18 , 136 , 564 , 2421 , 3096 , 65958 , 83562 , 531443 , 101862 , 7040206 , 2641119 , 19578984 , 73082643 , 932285900 , 441659642 , 6946735610 , 2589874823
n×2
163280244
n×3
244920366
n×4
326560488
n×5
408200610
n÷2
40820061
n÷3
27213374
n÷3
20410030.5
n÷5
16328024.4
n2
6665109520174884
n3
5.4414035437044E+23
n4
4.4423684915926E+31
n5
3.6267550562257E+39
2 √n
9035.4923496177
3 √n
433.81165420685
4 √n
95.055206851691
5 √n
38.227925327414
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
-81640121
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 81640122 can be divided by 8 positive divisors.
The sum of these divisors (counting 81640122) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111011011101010111010
3
Ternary
12200121202012020
4
Quaternary
10313123222322
5
Quinary
131344440442
6
Senary
12033455310
8
Octal
467335272
10
Decimal
81640122
12
Duodecimal
23411536
16
Hexadecimal
4ddbaba
20
Vigesimal
15a5062
36
Base36
1cltx6
md5
f4ea0ec2995cb88da73bfbd97539f643
sha1
0f1582a631d70603b2673bad4ebc6d3df10e17c4
sha256
17af00f603ac2265e3903c253accadda42cd2ba0e30ba06d8240cad8ca5aad28
sha512
dc63474c087d0ee4a1134df6bf705d694e37d0173a825a0b94f3bd4a80b04603a1df3781102f3c8b2e38b74bb2ea028d80ceb6072d1f4e07bd04af6f35e9888c
ripemd-160
7a3fae332af1ff54c0892df27bf881c8957998ab
Diameter
163280244
Circumference
512960015.02675
Area
2.0939059103953E+16
Volume
2.2792897864159E+24
Surface area
8.3756236415811E+16
Circumference
512960015.02675
Perimeter
326560488
Area
6665109520174884
Diagonal
115456567.76619
Surface area
39990657121049304
Volume
5.4414035437044E+23
Space diagonal
141404839.24012
Perimeter
244920366
Area
2.8860770817385E+15
Altitude
70702419.620061
Surface area
2.8860770817385E+15
Volume
6.4127555748765E+22
Height
38485522.588731