20181331 is an odd 8-digits composite number following 20181330
and preceding 20181332 . In scientific notation, it is written as 2.0181331 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20171664 positive integers (up to 20181331) that are relatively prime to 20181331.
20181331 has 4 divisors, whose sum is 20191000
The reverse of 20181331 is 13318102
Previous prime number is 3049
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred eighty-one thousand three hundred thirty-one
Scientific notation
2.0181331 × 10^7
Engineering notation
2.0181331 × 10^6
Prime Factorization
3049 × 6619
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20181331
Product of the distinct prime numbers
The prime factorization of 20181331 is 3049 × 6619.
Since it has a total of 2 prime factors.
4 , 5 , 85 , 98 , 707 , 728 , 4934 , 5002 , 16530 , 68650 , 235427 , 303027 , 438471 , 6221166 , 39745689 , 71379923 , 498498570 , 462345432 , 330094284 , 7570267708
n×2
40362662
n×3
60543993
n×4
80725324
n×5
100906655
n÷2
10090665.5
n÷3
6727110.3333333
n÷3
5045332.75
n÷5
4036266.2
n2
407286120931561
n3
8.2195760182259E+21
n4
1.6588198430348E+29
n5
3.3477192321653E+36
2 √n
4492.3636317645
3 √n
272.25964160209
4 √n
67.025097029131
5 √n
28.906130637921
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
-20181330
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 20181331 can be divided by 4 positive divisors.
The sum of these divisors (counting 20181331) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111111000101010011
3
Ternary
1101222022120201
4
Quaternary
1030333011103
5
Quinary
20131300311
6
Senary
2000320031
8
Octal
114770523
10
Decimal
20181331
12
Duodecimal
6913017
16
Hexadecimal
133f153
20
Vigesimal
662d6b
36
Base36
c0k0j
md5
14b13088fe0fee4f989685144fbcabe8
sha1
c81c7f3320ac0620757775e1355d98ccdd25f438
sha256
67b961d9f037ea2f3e5bb72a8d0a472d3745f8a82de141cb7d3be67d2ed29cf4
sha512
87ce25a5a5d6a03f7df7c79c829e0cbffa2588003f60e5d38e4948a0628f749d0650b9696373f7a0b7a5118e942dace7c2daeff8dbf7cf3736e464210adc0dfa
ripemd-160
106567fdb56895a6644924a559a374e45a1d3673
Diameter
40362662
Circumference
126803042.41853
Area
1.2795270854277E+15
Volume
3.4430079512642E+22
Surface area
5.1181083417107E+15
Circumference
126803042.41853
Perimeter
80725324
Area
407286120931561
Diagonal
28540712.006941
Surface area
2443716725589366
Volume
8.2195760182259E+21
Space diagonal
34955090.656365
Perimeter
60543993
Area
1.7636006366778E+14
Altitude
17477545.328182
Surface area
1.7636006366778E+14
Volume
9.686863234943E+20
Height
9513570.6689802