20131388 is an even 8-digits composite number following 20131387
and preceding 20131389 . In scientific notation, it is written as 2.0131388 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 6 positive divisors.
There are 10065692 positive integers (up to 20131388) that are relatively prime to 20131388.
20131388 has 6 divisors, whose sum is 35229936
The reverse of 20131388 is 88313102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred thirty-one thousand three hundred eighty-eight
Scientific notation
2.0131388 × 10^7
Engineering notation
2.0131388 × 10^6
Prime Factorization
2 × 2 × 5032847
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10065694
Product of the distinct prime numbers
The prime factorization of 20131388 is 2 × 2 × 5032847.
Since it has a total of 3 prime factors.
4 , 4 , 3 , 83 , 990 , 358 , 3105 , 3203 , 88624 , 33437 , 256234 , 70344 , 36743 , 3315104 , 64857940 , 19869971 , 667247722 , 635670600 , 8310842976 , 4565537349
n×2
40262776
n×3
60394164
n×4
80525552
n×5
100656940
n÷2
10065694
n÷3
6710462.6666667
n÷3
5032847
n÷5
4026277.6
n2
405272782806544
n3
8.1587036365183E+21
n4
1.6424602848376E+29
n5
3.3065005268656E+36
2 √n
4486.8015333866
3 √n
272.0348679349
4 √n
66.983591523496
5 √n
28.891809579864
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20131387
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20131388 can be divided by 6 positive divisors.
The sum of these divisors (counting 20131388) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001100110010111000111100
3
Ternary
1101212210001222
4
Quaternary
1030302320330
5
Quinary
20123201023
6
Senary
1555252512
8
Octal
114627074
10
Decimal
20131388
12
Duodecimal
68aa138
16
Hexadecimal
1332e3c
20
Vigesimal
65g898
36
Base36
bzhh8
md5
bdee5b3fadc459f9a277bbb8bcf62bce
sha1
997c1c455e5db06e5506d63469916a6340011009
sha256
05dc328c932e8d4e7cafc29f91db94e73338b5d9445eddc00ab6b697ee08f1db
sha512
bc9aceb716397237ee3cc8938831776d5d4d7fd6824db73778c67fd6423fe7412b5ab98ccc5eb4a30ca4146a369b753a8ad44c806ee7e2a0cbd7bba6bed1e5e9
ripemd-160
e638a4addece1290fa01755fa614cce69805d31b
Diameter
40262776
Circumference
126489241.29473
Area
1.2732019971649E+15
Volume
3.4175097876403E+22
Surface area
5.0928079886597E+15
Circumference
126489241.29473
Perimeter
80525552
Area
405272782806544
Diagonal
28470081.938995
Surface area
2431636696839264
Volume
8.1587036365183E+21
Space diagonal
34868586.842882
Perimeter
60394164
Area
1.7548826268644E+14
Altitude
17434293.421441
Surface area
1.7548826268644E+14
Volume
9.6151244451224E+20
Height
9490027.3129983