20120918 is an even 8-digits composite number following 20120917
and preceding 20120919 . In scientific notation, it is written as 2.0120918 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 10060458 positive integers (up to 20120918) that are relatively prime to 20120918.
20120918 has 4 divisors, whose sum is 30181380
The reverse of 20120918 is 81902102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty thousand nine hundred eighteen
Scientific notation
2.0120918 × 10^7
Engineering notation
2.0120918 × 10^6
Prime Factorization
2 × 10060459
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20120918
Product of the distinct prime numbers
The prime factorization of 20120918 is 2 × 10060459.
Since it has a total of 2 prime factors.
6 , 7 , 92 , 91 , 645 , 192 , 8324 , 3868 , 98255 , 82626 , 850294 , 390705 , 9552120 , 3987053 , 98463812 , 16440947 , 300064278 , 348079906 , 6941026371 , 2942949573
n×2
40241836
n×3
60362754
n×4
80483672
n×5
100604590
n÷2
10060459
n÷3
6706972.6666667
n÷3
5030229.5
n÷5
4024183.6
n2
404851341162724
n3
8.1459806377252E+21
n4
1.6390460844126E+29
n5
3.2979111862686E+36
2 √n
4485.6346262263
3 √n
271.987699487
4 √n
66.974880561493
5 √n
28.888803724576
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20120917
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20120918 can be divided by 4 positive divisors.
The sum of these divisors (counting 20120918) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000010101010110
3
Ternary
1101212020201012
4
Quaternary
1030300111112
5
Quinary
20122332133
6
Senary
1555132222
8
Octal
114602526
10
Decimal
20120918
12
Duodecimal
68a4072
16
Hexadecimal
1330556
20
Vigesimal
65f25i
36
Base36
bz9ee
md5
e9b058c29b46c0e65648ee27d11b8132
sha1
053661672cfe3b6556c9c48408d6d71b61fbaa91
sha256
a718a4cb42465c9e5312f2fac653e8acfc476782c6d154c0c5b12a642e9f2b28
sha512
e766c4119089511f564583434044e67dfa9c361b61096f2ec336041bef16f87ec6948cba94ece391e3aee7c32949f65061f8516606d13e2b95302cc5582e6789
ripemd-160
ea5eed56222c6ff7722cd183dc4dabe23dd0389e
Diameter
40241836
Circumference
126423456.34457
Area
1.2718779991928E+15
Volume
3.4121803903683E+22
Surface area
5.0875119967712E+15
Circumference
126423456.34457
Perimeter
80483672
Area
404851341162724
Diagonal
28455275.122997
Surface area
2429108046976344
Volume
8.1459806377252E+21
Space diagonal
34850452.270927
Perimeter
60362754
Area
1.7530577310156E+14
Altitude
17425226.135464
Surface area
1.7530577310156E+14
Volume
9.6001302472497E+20
Height
9485091.7076656