20723987 is an odd 8-digits composite number following 20723986
and preceding 20723988 . In scientific notation, it is written as 2.0723987 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 20560680 positive integers (up to 20723987) that are relatively prime to 20723987.
20723987 has 4 divisors, whose sum is 20887296
The reverse of 20723987 is 78932702
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million seven hundred twenty-three thousand nine hundred eighty-seven
Scientific notation
2.0723987 × 10^7
Engineering notation
2.0723987 × 10^6
Prime Factorization
127 × 163181
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20723987
Product of the distinct prime numbers
The prime factorization of 20723987 is 127 × 163181.
Since it has a total of 2 prime factors.
10 , 1 , 92 , 41 , 108 , 283 , 4277 , 9040 , 80631 , 90700 , 352298 , 498194 , 9431932 , 3574316 , 99701620 , 63770219 , 433746386 , 671665066 , 7674789240 , 5777650685
n×2
41447974
n×3
62171961
n×4
82895948
n×5
103619935
n÷2
10361993.5
n÷3
6907995.6666667
n÷3
5180996.75
n÷5
4144797.4
n2
429483637176169
n3
8.9006133135516E+21
n4
1.8445619460207E+29
n5
3.8226677790028E+36
2 √n
4552.3605964379
3 √n
274.67835452223
4 √n
67.471183452181
5 √n
29.059936584837
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
-20723986
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 20723987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20723987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111000011100100010011
3
Ternary
1102222212222002
4
Quaternary
1033003210103
5
Quinary
20301131422
6
Senary
2020104215
8
Octal
117034423
10
Decimal
20723987
12
Duodecimal
6b3506b
16
Hexadecimal
13c3913
20
Vigesimal
69a9j7
36
Base36
cc6qb
md5
7b81417449275766bf25fa50c10354a0
sha1
fdb2601fb8328b8e7210759324a39fa3c2207cb3
sha256
90d409d4e18a7388a573085077683ae70adeb2da8c44184c34f73ea59c9cd16a
sha512
a6c5391e96ad8a49cd4b7986365b0c8b1f162e55069e015d79ca7262683fbc3afe15e1bba15b6d208ba8f24ecd290b525b44cd35c0c8d7c20082e68e2581164f
ripemd-160
ae146d54e049b0e506f543870588cd9df7e9bc18
Diameter
41447974
Circumference
130212650.62458
Area
1.3492626393897E+15
Volume
3.7282801864396E+22
Surface area
5.3970505575587E+15
Circumference
130212650.62458
Perimeter
82895948
Area
429483637176169
Diagonal
29308143.481844
Surface area
2576901823057014
Volume
8.9006133135516E+21
Space diagonal
35894998.419397
Perimeter
62171961
Area
1.8597187015215E+14
Altitude
17947499.209698
Surface area
1.8597187015215E+14
Volume
1.0489473384553E+21
Height
9769381.1606146