20388631 is an odd 8-digits composite number following 20388630
and preceding 20388632 . In scientific notation, it is written as 2.0388631 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20379600 positive integers (up to 20388631) that are relatively prime to 20388631.
20388631 has 4 divisors, whose sum is 20397664
The reverse of 20388631 is 13688302
Previous prime number is 4591
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million three hundred eighty-eight thousand six hundred thirty-one
Scientific notation
2.0388631 × 10^7
Engineering notation
2.0388631 × 10^6
Prime Factorization
4591 × 4441
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20388631
Product of the distinct prime numbers
The prime factorization of 20388631 is 4591 × 4441.
Since it has a total of 2 prime factors.
4 , 4 , 100 , 94 , 196 , 470 , 5880 , 7641 , 1348 , 99751 , 269155 , 766152 , 9821141 , 6950305 , 45205250 , 52287694 , 250464488 , 935004563 , 6944698910 , 2197791556
n×2
40777262
n×3
61165893
n×4
81554524
n×5
101943155
n÷2
10194315.5
n÷3
6796210.3333333
n÷3
5097157.75
n÷5
4077726.2
n2
415696274054161
n3
8.4754779397652E+21
n4
1.7280339226251E+29
n5
3.5232246003886E+36
2 √n
4515.3771714
3 √n
273.18867303966
4 √n
67.196556246581
5 √n
28.965272137871
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
-20388630
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 20388631 can be divided by 4 positive divisors.
The sum of these divisors (counting 20388631) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101110001101100010111
3
Ternary
1102100211221111
4
Quaternary
1031301230113
5
Quinary
20204414011
6
Senary
2004555451
8
Octal
115615427
10
Decimal
20388631
12
Duodecimal
69b2b87
16
Hexadecimal
1371b17
20
Vigesimal
678bbb
36
Base36
c4zyv
md5
c8a796aab74c98b4aeaf4314b0b5b6dc
sha1
5db0337956a53e59ae2f9333e072175e1739e0b7
sha256
93cd797668c89c515133890d179c0414ab301015b3cd29108055ba9bbc52a37f
sha512
eacbbfdc65aa7cf0dffb2be4fcd0b87153c7b315139a0c9530122084c1d4821afd78610a287e481e9129e4b8c3e3f61775cf2101d070c55211d7b313181d1f82
ripemd-160
da79e1255aad5fa762d8d545dc09bf806883ae58
Diameter
40777262
Circumference
128105546.73271
Area
1.3059483606932E+15
Volume
3.5501998974971E+22
Surface area
5.2237934427728E+15
Circumference
128105546.73271
Perimeter
81554524
Area
415696274054161
Diagonal
28833878.478421
Surface area
2494177644324966
Volume
8.4754779397652E+21
Space diagonal
35314144.788774
Perimeter
61165893
Area
1.8000176679472E+14
Altitude
17657072.394387
Surface area
1.8000176679472E+14
Volume
9.9884465416749E+20
Height
9611292.8261402