20101818 is an even 8-digits composite number following 20101817
and preceding 20101819 . In scientific notation, it is written as 2.0101818 × 10^7.
The sum of its digits is 21. It has a total of 5 prime factors and 32 positive divisors.
There are 5990400 positive integers (up to 20101818) that are relatively prime to 20101818.
20101818 has 32 divisors, whose sum is 44586432
The reverse of 20101818 is 81810102
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred one thousand eight hundred eighteen
Scientific notation
2.0101818 × 10^7
Engineering notation
2.0101818 × 10^6
Prime Factorization
2 × 3 × 11 × 61 × 4993
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20101818
Product of the distinct prime numbers
The prime factorization of 20101818 is 2 × 3 × 11 × 61 × 4993.
Since it has a total of 5 prime factors.
6 , 4 , 44 , 26 , 956 , 851 , 1018 , 7249 , 3834 , 46639 , 3394 , 58015 , 1477084 , 6473743 , 50959724 , 75918929 , 247625869 , 430176045 , 9272857824 , 3474279223
n×2
40203636
n×3
60305454
n×4
80407272
n×5
100509090
n÷2
10050909
n÷3
6700606
n÷3
5025454.5
n÷5
4020363.6
n2
404083086905124
n3
8.122804669845E+21
n4
1.6328314112277E+29
n5
3.2822879853183E+36
2 √n
4483.5051020379
3 √n
271.90160981455
4 √n
66.958980742227
5 √n
28.883317038706
1 , 2 , 3 , 6 , 11 , 22 , 33 , 61 , 66 , 122 , 183 , 366 , 671 , 1342 , 2013 , 4026 , 4993 , 9986 , 14979 , 29958 , 54923 , 109846 , 164769 , 304573 , 329538 , 609146 , 913719 , 1827438 , 3350303 , 6700606 , 10050909 , 20101818
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20101817
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20101818 can be divided by 32 positive divisors.
The sum of these divisors (counting 20101818) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100101011101010111010
3
Ternary
1101211021111210
4
Quaternary
1030223222322
5
Quinary
20121224233
6
Senary
1554503550
8
Octal
114535272
10
Decimal
20101818
12
Duodecimal
6894bb6
16
Hexadecimal
132baba
20
Vigesimal
65ceai
36
Base36
byunu
md5
fe4e8c5e4f0351c14065c9c6e4fef3fd
sha1
5ab9eaead6c3a3fa351b1db965632145be61a835
sha256
ac602e5c30bb35847e73baeb20ac4ab52f46615c9eb4e5f23c2e2d6fc57e2385
sha512
92b9231bdb7bfb1389e858ee7585e7c69d3b855b12bb2ed4fad068107f74b5ecd15db427250a79a8a9af737e97e12841c9dde6505660f25f833622826dd0504a
ripemd-160
d6dc6b543300be2326ae0546b4713c88ef388b33
Diameter
40203636
Circumference
126303447.5052
Area
1.269464457261E+15
Volume
3.402472463644E+22
Surface area
5.0778578290441E+15
Circumference
126303447.5052
Perimeter
80407272
Area
404083086905124
Diagonal
28428263.643956
Surface area
2424498521430744
Volume
8.122804669845E+21
Space diagonal
34817370.100503
Perimeter
60305454
Area
1.7497310924974E+14
Altitude
17408685.050251
Surface area
1.7497310924974E+14
Volume
9.5728171071686E+20
Height
9476087.8813185