81207622 is an even 8-digits composite number following 81207621
and preceding 81207623 . In scientific notation, it is written as 8.1207622 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 40345032 positive integers (up to 81207622) that are relatively prime to 81207622.
81207622 has 8 divisors, whose sum is 122587776
The reverse of 81207622 is 22670218
Previous prime number is 157
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million two hundred seven thousand six hundred twenty-two
Scientific notation
8.1207622 × 10^7
Engineering notation
8.1207622 × 10^6
Prime Factorization
2 × 157 × 258623
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81207622
Product of the distinct prime numbers
The prime factorization of 81207622 is 2 × 157 × 258623.
Since it has a total of 3 prime factors.
10 , 10 , 1 , 93 , 275 , 900 , 8554 , 841 , 74908 , 71643 , 170966 , 234091 , 1333946 , 7875146 , 54324449 , 65808313 , 61377223 , 109539801 , 2066555278 , 3796578082
n×2
162415244
n×3
243622866
n×4
324830488
n×5
406038110
n÷2
40603811
n÷3
27069207.333333
n÷3
20301905.5
n÷5
16241524.4
n2
6594677870894884
n3
5.355381077514E+23
n4
4.3489776220871E+31
n5
3.5317013082091E+39
2 √n
9011.5271735705
3 √n
433.04423807576
4 √n
94.929063903372
5 √n
38.187335664745
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
-81207621
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 81207622 can be divided by 8 positive divisors.
The sum of these divisors (counting 81207622) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101110010000101000110
3
Ternary
12122210202220201
4
Quaternary
10311302011012
5
Quinary
131242120442
6
Senary
12020321114
8
Octal
465620506
10
Decimal
81207622
12
Duodecimal
2324319a
16
Hexadecimal
4d72146
20
Vigesimal
157aj12
36
Base36
1cck7a
md5
d0f80e2e8d89aeaf22c8b2e8f31b648c
sha1
8ea1eb74d96ff3ffb74f6022c7b1ad342a202dc1
sha256
0e8c077a2ab3baa6269a45b8680a85f23a7e9a13765b3ee30ec6eed0655298ce
sha512
35c7ce2542ec8e4ee7fff1c3d45eec6ce0c079d9b84e2f53a6cab562e11e4f4f939dfd7e39a24c29174f274500c52223de0adb2c43d3b6b6f804c26231251086
ripemd-160
869ff7f7dd870fe1e659740f3e10f7038ea4d0dd
Diameter
162415244
Circumference
510242537.38139
Area
2.0717791551995E+16
Volume
2.2432567800389E+24
Surface area
8.2871166207978E+16
Circumference
510242537.38139
Perimeter
324830488
Area
6594677870894884
Diagonal
114844920.40047
Surface area
39568067225369304
Volume
5.355381077514E+23
Space diagonal
140655727.26585
Perimeter
243622866
Area
2.855579282985E+15
Altitude
70327863.632924
Surface area
2.855579282985E+15
Volume
6.3113771262471E+22
Height
38281640.133489