20181306 is an even 8-digits composite number following 20181305
and preceding 20181307 . In scientific notation, it is written as 2.0181306 × 10^7.
The sum of its digits is 21. It has a total of 5 prime factors and 32 positive divisors.
There are 6335280 positive integers (up to 20181306) that are relatively prime to 20181306.
20181306 has 32 divisors, whose sum is 42739200
The reverse of 20181306 is 60318102
Previous prime number is 211
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred eighty-one thousand three hundred six
Scientific notation
2.0181306 × 10^7
Engineering notation
2.0181306 × 10^6
Prime Factorization
2 × 3 × 19 × 211 × 839
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20181306
Product of the distinct prime numbers
The prime factorization of 20181306 is 2 × 3 × 19 × 211 × 839.
Since it has a total of 5 prime factors.
10 , 2 , 47 , 27 , 908 , 447 , 279 , 3494 , 22189 , 56011 , 696240 , 450198 , 526013 , 8118209 , 35210764 , 87544838 , 319440378 , 741842765 , 4842896066 , 5120985270
n×2
40362612
n×3
60543918
n×4
80725224
n×5
100906530
n÷2
10090653
n÷3
6727102
n÷3
5045326.5
n÷5
4036261.2
n2
407285111865636
n3
8.2195454718046E+21
n4
1.658811623474E+29
n5
3.3476984969686E+36
2 √n
4492.360849264
3 √n
272.25952917981
4 √n
67.025076271975
5 √n
28.906123476316
1 , 2 , 3 , 6 , 19 , 38 , 57 , 114 , 211 , 422 , 633 , 839 , 1266 , 1678 , 2517 , 4009 , 5034 , 8018 , 12027 , 15941 , 24054 , 31882 , 47823 , 95646 , 177029 , 354058 , 531087 , 1062174 , 3363551 , 6727102 , 10090653 , 20181306
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
-20181305
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 20181306 can be divided by 32 positive divisors.
The sum of these divisors (counting 20181306) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100111111000100111010
3
Ternary
1101222022112210
4
Quaternary
1030333010322
5
Quinary
20131300211
6
Senary
2000315550
8
Octal
114770472
10
Decimal
20181306
12
Duodecimal
6912bb6
16
Hexadecimal
133f13a
20
Vigesimal
662d56
36
Base36
c0jzu
md5
de7b17fe4746c33160adfa2e65bb0800
sha1
bd160d7e839ac1319e59573614a0e143310616aa
sha256
c8935efaa99b4e70609a6688d767502f1b29f0a352f95824ea67bf4885d4aeb6
sha512
352c9e925e7cfc82b3cf80da9df411af9b8118116a63cf6d62babb9278991c96218299e292700168f748db594ecb9a637083be1be3fa7ff5258568a40e111a73
ripemd-160
a5dea4e174d0c6a1294a4d8a7561fdffca2577d7
Diameter
40362612
Circumference
126802885.3389
Area
1.2795239153536E+15
Volume
3.4429951560092E+22
Surface area
5.1180956614143E+15
Circumference
126802885.3389
Perimeter
80725224
Area
407285111865636
Diagonal
28540676.651602
Surface area
2443710671193816
Volume
8.2195454718046E+21
Space diagonal
34955047.355095
Perimeter
60543918
Area
1.7635962672941E+14
Altitude
17477523.677547
Surface area
1.7635962672941E+14
Volume
9.6868272356404E+20
Height
9513558.8838672