20181369 is an odd 8-digits composite number following 20181368
and preceding 20181370 . In scientific notation, it is written as 2.0181369 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 12419280 positive integers (up to 20181369) that are relatively prime to 20181369.
20181369 has 4 divisors, whose sum is 20698880
The reverse of 20181369 is 96318102
Previous prime number is 39
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred eighty-one thousand three hundred sixty-nine
Scientific notation
2.0181369 × 10^7
Engineering notation
2.0181369 × 10^6
Prime Factorization
39 × 517471
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20181369
Product of the distinct prime numbers
The prime factorization of 20181369 is 39 × 517471.
Since it has a total of 2 prime factors.
2 , 5 , 79 , 100 , 813 , 623 , 9700 , 1116 , 93645 , 1284 , 833795 , 47311 , 3970278 , 7340227 , 7845668 , 3951924 , 686957378 , 1696669 , 6431717782 , 1010489942
n×2
40362738
n×3
60544107
n×4
80725476
n×5
100906845
n÷2
10090684.5
n÷3
6727123
n÷3
5045342.25
n÷5
4036273.8
n2
407287654714161
n3
8.2196224489311E+21
n4
1.6588323368256E+29
n5
3.347750749861E+36
2 √n
4492.3678611619
3 √n
272.25981248378
4 √n
67.025128579973
5 √n
28.906141523547
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
-20181368
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 20181369 can be divided by 4 positive divisors.
The sum of these divisors (counting 20181369) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111111000101111001
3
Ternary
1101222022122010
4
Quaternary
1030333011321
5
Quinary
20131300434
6
Senary
2000320133
8
Octal
114770571
10
Decimal
20181369
12
Duodecimal
6913049
16
Hexadecimal
133f179
20
Vigesimal
662d89
36
Base36
c0k1l
md5
0554978993270dc512b6c014a4224da7
sha1
ce51a80c3f45b7605a13db14bd4797b2ce4cdfb8
sha256
19d0d34281fb79f4f49923a4cb6f6391f22049a1980f9e881692f6af8d47ffc4
sha512
e28456f1d4e1621cab68871238c703b00c169b618e78c8df52d52ffe207703c5a672760723ab701633cf6ad043a21b5c5a587b5331dd99f962b1ec059f891e69
ripemd-160
ed1c4c021e89c083db7ed86d78d7cff272d1e8c2
Diameter
40362738
Circumference
126803281.17957
Area
1.2795319039478E+15
Volume
3.4430274001125E+22
Surface area
5.1181276157913E+15
Circumference
126803281.17957
Perimeter
80725476
Area
407287654714161
Diagonal
28540765.747056
Surface area
2443725928284966
Volume
8.2196224489311E+21
Space diagonal
34955156.474296
Perimeter
60544107
Area
1.7636072781512E+14
Altitude
17477578.237148
Surface area
1.7636072781512E+14
Volume
9.6869179540539E+20
Height
9513588.582352