20129915 is an odd 8-digits composite number following 20129914
and preceding 20129916 . In scientific notation, it is written as 2.0129915 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 14031360 positive integers (up to 20129915) that are relatively prime to 20129915.
20129915 has 16 divisors, whose sum is 21621600
The reverse of 20129915 is 51992102
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred twenty-nine thousand nine hundred fifteen
Scientific notation
2.0129915 × 10^7
Engineering notation
2.0129915 × 10^6
Prime Factorization
65 × 29 × 59 × 181
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20129915
Product of the distinct prime numbers
The prime factorization of 20129915 is 65 × 29 × 59 × 181.
Since it has a total of 4 prime factors.
4 , 3 , 52 , 21 , 326 , 280 , 9972 , 687 , 15369 , 14243 , 985098 , 435601 , 2861230 , 2833013 , 4306376 , 70254875 , 120165793 , 812270575 , 8821729818 , 3444153783
n×2
40259830
n×3
60389745
n×4
80519660
n×5
100649575
n÷2
10064957.5
n÷3
6709971.6666667
n÷3
5032478.75
n÷5
4025983
n2
405213477907225
n3
8.1569128671268E+21
n4
1.6419796267767E+29
n5
3.3052910318747E+36
2 √n
4486.6373822719
3 √n
272.02823290417
4 √n
66.982366203889
5 √n
28.891386768669
1 , 29 , 59 , 65 , 181 , 1711 , 1885 , 3835 , 5249 , 10679 , 11765 , 111215 , 309691 , 341185 , 694135 , 20129915
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20129914
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20129915 can be divided by 16 positive divisors.
The sum of these divisors (counting 20129915) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110010100001111011
3
Ternary
1101212201001102
4
Quaternary
1030302201323
5
Quinary
20123124130
6
Senary
1555242015
8
Octal
114624173
10
Decimal
20129915
12
Duodecimal
68a930b
16
Hexadecimal
133287b
20
Vigesimal
65g4ff
36
Base36
bzgcb
md5
0b644312a5fc33d42421c6209a2ea386
sha1
b70dd65b616677b87e6e7c251aa53e9c4c6a38de
sha256
889b2557317a68c1764b669fb634cbf3890d16523e05f9a9c5b14a6c7c20057f
sha512
aac6dc15a05f1cb87c96bf6af9b24e921ebd37626d87105ed08b1b5d1214472eb8ce86675805d9e7dde679466d2c9c7abf0a38fa544741b56a1c2670ba8be8ef
ripemd-160
4edd3d463a841f6d0c2db28dff65e67c9500a232
Diameter
40259830
Circumference
126479986.16277
Area
1.2730156853289E+15
Volume
3.4167596719117E+22
Surface area
5.0920627413156E+15
Circumference
126479986.16277
Perimeter
80519660
Area
405213477907225
Diagonal
28467998.802418
Surface area
2431280867443350
Volume
8.1569128671268E+21
Space diagonal
34866035.532043
Perimeter
60389745
Area
1.7546258291175E+14
Altitude
17433017.766021
Surface area
1.7546258291175E+14
Volume
9.6130140031553E+20
Height
9489332.9341392