20129897 is an odd 8-digits prime number following 20129896
and preceding 20129898 . In scientific notation, it is written as 2.0129897 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 20129896 positive integers (up to 20129897) that are relatively prime to 20129897.
20129897 has 2 divisors, whose sum is 20129898
The reverse of 20129897 is 79892102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred twenty-nine thousand eight hundred ninety-seven
Scientific notation
2.0129897 × 10^7
Engineering notation
2.0129897 × 10^6
Prime Factorization
20129897
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20129897
Product of the distinct prime numbers
The prime factorization of 20129897 is 20129897.
Since it has a total of 1 prime factors.
10 , 7 , 52 , 77 , 366 , 991 , 5729 , 5912 , 60772 , 3372 , 208345 , 327969 , 7441107 , 9970540 , 58157899 , 87497437 , 223610892 , 546688046 , 6306517948 , 2071336727
n×2
40259794
n×3
60389691
n×4
80519588
n×5
100649485
n÷2
10064948.5
n÷3
6709965.6666667
n÷3
5032474.25
n÷5
4025979.4
n2
405212753230609
n3
8.1568909856186E+21
n4
1.6419737538073E+29
n5
3.3052762540844E+36
2 √n
4486.6353763149
3 √n
272.02815182236
4 √n
66.982351230118
5 √n
28.89138160178
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20129898
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10064949
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4486.6354877569
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999006453
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20129897 can be divided by 2 positive divisors.
The sum of these divisors (counting 20129897) is 20129898, the average is 10064949.
Base
System
Value
2
Binary
1001100110010100001101001
3
Ternary
1101212201000202
4
Quaternary
1030302201221
5
Quinary
20123124042
6
Senary
1555241545
8
Octal
114624151
10
Decimal
20129897
12
Duodecimal
68a92b5
16
Hexadecimal
1332869
20
Vigesimal
65g4eh
36
Base36
bzgbt
md5
246e6185aab02e6fce707cdf3f3ae175
sha1
38e2d8a6ac5b38816831befbd6d222d460164928
sha256
a74ad35946c7f584a87f8d37502b98844242f4653e3df4050e7a41c683b350e5
sha512
7b7eb89c0d46add46b16d8d3d214a25532e22adc2dc810e5e54ebaffef6ee99d4250b488ca41096ff5d5d8846808470fb301ab94443b2df7ab54b906ee92c684
ripemd-160
03e9bc8ad8bc0572eb832e8980a6f08760a0df7f
Diameter
40259794
Circumference
126479873.06544
Area
1.2730134086902E+15
Volume
3.4167505062069E+22
Surface area
5.0920536347607E+15
Circumference
126479873.06544
Perimeter
80519588
Area
405212753230609
Diagonal
28467973.346573
Surface area
2431276519383654
Volume
8.1568909856186E+21
Space diagonal
34866004.355128
Perimeter
60389691
Area
1.7546226911757E+14
Altitude
17433002.177564
Surface area
1.7546226911757E+14
Volume
9.6129882155505E+20
Height
9489324.4488578