81122907 is an odd 8-digits composite number following 81122906
and preceding 81122908 . In scientific notation, it is written as 8.1122907 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 52620192 positive integers (up to 81122907) that are relatively prime to 81122907.
81122907 has 8 divisors, whose sum is 111087376
The reverse of 81122907 is 70922118
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million one hundred twenty-two thousand nine hundred seven
Scientific notation
8.1122907 × 10^7
Engineering notation
8.1122907 × 10^6
Prime Factorization
3 × 37 × 730837
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81122907
Product of the distinct prime numbers
The prime factorization of 81122907 is 3 × 37 × 730837.
Since it has a total of 3 prime factors.
1 , 7 , 39 , 24 , 789 , 201 , 7133 , 2140 , 87094 , 48889 , 985197 , 847226 , 7086916 , 8852636 , 65559385 , 27059188 , 837906800 , 376280869 , 1142458748 , 472325924
n×2
162245814
n×3
243368721
n×4
324491628
n×5
405614535
n÷2
40561453.5
n÷3
27040969
n÷3
20280726.75
n÷5
16224581.4
n2
6580926040130649
n3
5.338638511274E+23
n4
4.330858754567E+31
n5
3.5133185197687E+39
2 √n
9006.8255784155
3 √n
432.89360317344
4 √n
94.904296943898
5 √n
38.17936500679
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
-81122906
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 81122907 can be divided by 8 positive divisors.
The sum of these divisors (counting 81122907) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011101011001011011
3
Ternary
12122122110201010
4
Quaternary
10311131121123
5
Quinary
131231413112
6
Senary
12014425003
8
Octal
465353133
10
Decimal
81122907
12
Duodecimal
23202163
16
Hexadecimal
4d5d65b
20
Vigesimal
1570757
36
Base36
1caqu3
md5
0cbe3661e0ed6886663c7200dd07987a
sha1
bd67051340410603392dd2a31a85ffe38112d4bf
sha256
c14287b63e0059de1ab4d61d1f77e4aa7c7cb7c21cb5fec18febe07b726323d3
sha512
0fe5ff093a1f95a5ebbe619f88fc93ecf1072ef8da289cb0834ca2018c1456350efd077c630ba163d02dfca42fc4d879856e0d7db5da0a7b6cdce2a9c6ccf4fd
ripemd-160
fa5929888d75de8c56c3fa089daefbdba91f38cd
Diameter
162245814
Circumference
509710257.3381
Area
2.0674588901492E+16
Volume
2.236243670292E+24
Surface area
8.2698355605969E+16
Circumference
509710257.3381
Perimeter
324491628
Area
6580926040130649
Diagonal
114725115.29853
Surface area
39485556240783894
Volume
5.338638511274E+23
Space diagonal
140508996.58168
Perimeter
243368721
Area
2.8496245655898E+15
Altitude
70254498.290842
Surface area
2.8496245655898E+15
Volume
6.2916458227091E+22
Height
38241705.09951