20129913 is an odd 8-digits composite number following 20129912
and preceding 20129914 . In scientific notation, it is written as 2.0129913 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 13419936 positive integers (up to 20129913) that are relatively prime to 20129913.
20129913 has 4 divisors, whose sum is 22366580
The reverse of 20129913 is 31992102
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred twenty-nine thousand nine hundred thirteen
Scientific notation
2.0129913 × 10^7
Engineering notation
2.0129913 × 10^6
Prime Factorization
9 × 2236657
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20129913
Product of the distinct prime numbers
The prime factorization of 20129913 is 9 × 2236657.
Since it has a total of 2 prime factors.
4 , 4 , 38 , 81 , 998 , 662 , 7924 , 7189 , 20741 , 68521 , 1006 , 103072 , 6532716 , 8137198 , 26986420 , 60745955 , 568532689 , 479847133 , 9293952543 , 3880729985
n×2
40259826
n×3
60389739
n×4
80519652
n×5
100649565
n÷2
10064956.5
n÷3
6709971
n÷3
5032478.25
n÷5
4025982.6
n2
405213397387569
n3
8.1569104358462E+21
n4
1.6419789742238E+29
n5
3.3052893898954E+36
2 √n
4486.6371593879
3 √n
272.02822389508
4 √n
66.982364540137
5 √n
28.89138619457
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
-20129912
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 20129913 can be divided by 4 positive divisors.
The sum of these divisors (counting 20129913) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010100001111001
3
Ternary
1101212201001100
4
Quaternary
1030302201321
5
Quinary
20123124123
6
Senary
1555242013
8
Octal
114624171
10
Decimal
20129913
12
Duodecimal
68a9309
16
Hexadecimal
1332879
20
Vigesimal
65g4fd
36
Base36
bzgc9
md5
dbf12c936478df3ef29473323d7115ba
sha1
e32e368b7403a281f8c7cc89e37e5ddf6ffe44a6
sha256
3c81d4b91809849924d60ca57abc4947086cfc0457c849678d0555860e144475
sha512
f19bd1e9b5e542db1b471cac39b675ecd2b0a7f4d5c57eb80b138f577ea6520b301d74c5fd872e673cf5f14d254a179c13c32f8e9b17d3144cb93085128469c6
ripemd-160
3034918c21f212f82bf715aad8fc7dd4f56a0796
Diameter
40259826
Circumference
126479973.5964
Area
1.2730154323689E+15
Volume
3.4167586534992E+22
Surface area
5.0920617294758E+15
Circumference
126479973.5964
Perimeter
80519652
Area
405213397387569
Diagonal
28467995.97399
Surface area
2431280384325414
Volume
8.1569104358462E+21
Space diagonal
34866032.067941
Perimeter
60389739
Area
1.7546254804572E+14
Altitude
17433016.033971
Surface area
1.7546254804572E+14
Volume
9.6130111378636E+20
Height
9489331.9913302