20385979 is an odd 8-digits composite number following 20385978
and preceding 20385980 . In scientific notation, it is written as 2.0385979 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 19755840 positive integers (up to 20385979) that are relatively prime to 20385979.
20385979 has 8 divisors, whose sum is 21022848
The reverse of 20385979 is 97958302
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million three hundred eighty-five thousand nine hundred seventy-nine
Scientific notation
2.0385979 × 10^7
Engineering notation
2.0385979 × 10^6
Prime Factorization
157 × 41 × 3167
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20385979
Product of the distinct prime numbers
The prime factorization of 20385979 is 157 × 41 × 3167.
Since it has a total of 3 prime factors.
3 , 4 , 12 , 46 , 947 , 186 , 2026 , 9160 , 18709 , 89054 , 239716 , 27780 , 7700397 , 5594883 , 57360438 , 25744724 , 580399258 , 775335243 , 5929543739 , 3727577816
n×2
40771958
n×3
61157937
n×4
81543916
n×5
101929895
n÷2
10192989.5
n÷3
6795326.3333333
n÷3
5096494.75
n÷5
4077195.8
n2
415588139788441
n3
8.4721710903762E+21
n4
1.7271350193282E+29
n5
3.5209338234189E+36
2 √n
4515.0834986742
3 √n
273.17682774909
4 √n
67.194371034144
5 √n
28.96451858165
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20385978
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20385979 can be divided by 8 positive divisors.
The sum of these divisors (counting 20385979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110001000010111011
3
Ternary
1102100201022021
4
Quaternary
1031301002323
5
Quinary
20204322404
6
Senary
2004535311
8
Octal
115610273
10
Decimal
20385979
12
Duodecimal
69b1537
16
Hexadecimal
13710bb
20
Vigesimal
6784ij
36
Base36
c4xx7
md5
c4370e4bcfe46eb3903539e4b570c9dc
sha1
4fab361c4d38eb17a481e2596175200359bb8ab4
sha256
1c79d6e1ac9eb8b8bade5fa69e5ebbaa091e580c0685cce3fe6ad4b5cf891a5d
sha512
faabf8cd4900f70cbce0b8f28da3fbc876fca406230bc8d860fdb1e710e4499f75f91ab7641b0ef8dc4c793dcbb68ae15a6ae6320fe4e31c084c5d84684716f3
ripemd-160
62cbb3e839414abe224f69dc69117cd1d74b1272
Diameter
40771958
Circumference
128088883.72527
Area
1.3056086468784E+15
Volume
3.5488147276642E+22
Surface area
5.2224345875137E+15
Circumference
128088883.72527
Perimeter
81543916
Area
415588139788441
Diagonal
28830127.984053
Surface area
2493528838730646
Volume
8.4721710903762E+21
Space diagonal
35309551.390032
Perimeter
61157937
Area
1.7995494328415E+14
Altitude
17654775.695016
Surface area
1.7995494328415E+14
Volume
9.9845493822961E+20
Height
9610042.661351