12731921 is an odd 8-digits prime number following 12731920
and preceding 12731922 . In scientific notation, it is written as 1.2731921 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 12731920 positive integers (up to 12731921) that are relatively prime to 12731921.
12731921 has 2 divisors, whose sum is 12731922
The reverse of 12731921 is 12913721
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twelve million seven hundred thirty-one thousand nine hundred twenty-one
Scientific notation
1.2731921 × 10^7
Engineering notation
1.2731921 × 10^6
Prime Factorization
12731921
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
12731921
Product of the distinct prime numbers
The prime factorization of 12731921 is 12731921.
Since it has a total of 1 prime factors.
3 , 9 , 50 , 89 , 867 , 213 , 9469 , 3595 , 57363 , 89800 , 694445 , 995985 , 821279 , 456961 , 92955992 , 21061466 , 956773047 , 951153813 , 502447998 , 5479085871
n×2
25463842
n×3
38195763
n×4
50927684
n×5
63659605
n÷2
6365960.5
n÷3
4243973.6666667
n÷3
3182980.25
n÷5
2546384.2
n2
162101812350241
n3
2.0638674688001E+21
n4
2.6276997567233E+28
n5
3.345566571432E+35
2 √n
3568.1817498552
3 √n
233.5059645379
4 √n
59.734259431713
5 √n
26.362026183148
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
12731922
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
6365961
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
3568.1818899826
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998429145
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12731921 can be divided by 2 positive divisors.
The sum of these divisors (counting 12731921) is 12731922, the average is 6365961.
Base
System
Value
2
Binary
110000100100011000010001
3
Ternary
212221211220122
4
Quaternary
300210120101
5
Quinary
11224410141
6
Senary
1132520025
8
Octal
60443021
10
Decimal
12731921
12
Duodecimal
4320015
16
Hexadecimal
c24611
20
Vigesimal
3jb9g1
36
Base36
7kw0h
md5
b8064d4ed18d6ccd03828ee1370385b7
sha1
4e42de7e7dbca212747411778cd9fef981e82798
sha256
8d1c01514e6fecc23035b0efbbfa641c177d244c1029c6decd148cb344459b9d
sha512
c326df8e68c0c40257825950c83ae030651da9d5fa2f710a8aefdf4d4f7a1cfe75ec66fca0fb9e862782cf9e1bbfe8e5e0248c892652fd3215bfb1f500f0f56b
ripemd-160
7e5e718070b37033dd255d0ba0de2ef474a7c40a
Diameter
25463842
Circumference
79997018.959371
Area
5.0925786281311E+14
Volume
8.6451078372871E+21
Surface area
2.0370314512524E+15
Circumference
79997018.959371
Perimeter
50927684
Area
162101812350241
Diagonal
18005655.353263
Surface area
972610874101446
Volume
2.0638674688001E+21
Space diagonal
22052334.049953
Perimeter
38195763
Area
70192143747403
Altitude
11026167.024977
Surface area
70192143747403
Volume
2.4322911377648E+20
Height
6001885.1177543