12831721 is an odd 8-digits composite number following 12831720
and preceding 12831722 . In scientific notation, it is written as 1.2831721 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 10847520 positive integers (up to 12831721) that are relatively prime to 12831721.
12831721 has 8 divisors, whose sum is 14866304
The reverse of 12831721 is 12713821
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twelve million eight hundred thirty-one thousand seven hundred twenty-one
Scientific notation
1.2831721 × 10^7
Engineering notation
1.2831721 × 10^6
Prime Factorization
7 × 73 × 25111
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12831721
Product of the distinct prime numbers
The prime factorization of 12831721 is 7 × 73 × 25111.
Since it has a total of 3 prime factors.
4 , 9 , 50 , 4 , 208 , 422 , 2845 , 241 , 18771 , 975 , 640215 , 481322 , 4826022 , 4424295 , 78906254 , 39650037 , 146023004 , 704135642 , 9425589462 , 6800246974
n×2
25663442
n×3
38495163
n×4
51326884
n×5
64158605
n÷2
6415860.5
n÷3
4277240.3333333
n÷3
3207930.25
n÷5
2566344.2
n2
164653063821841
n3
2.1127821767571E+21
n4
2.7110631425919E+28
n5
3.4787605859123E+35
2 √n
3582.1391653592
3 √n
234.11449458187
4 √n
59.85097464001
5 √n
26.403225303223
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
-12831720
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 12831721 can be divided by 8 positive divisors.
The sum of these divisors (counting 12831721) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000111100101111101001
3
Ternary
220010220210221
4
Quaternary
300330233221
5
Quinary
11241103341
6
Senary
1135010041
8
Octal
60745751
10
Decimal
12831721
12
Duodecimal
4369921
16
Hexadecimal
c3cbe9
20
Vigesimal
403j61
36
Base36
7n10p
md5
4204086000fb80a6e5ce43843c2e8691
sha1
a8d9b647d17f4fb98f1d497153682c39fe459ebc
sha256
25d1a1032034dffa2a589d25331b62a68ff769c4392521ca6d5e25f059c5ef90
sha512
3bc0983e1de6905da386c25d4639657d98efd044088e056f409d57d6b8269eb1600d4cbe3480470a337d76cda5de7c6105320214361e6e8781d876a3aac57915
ripemd-160
8eb6b8331021c5a77a178016ac2f24c881d6995e
Diameter
25663442
Circumference
80624080.853028
Area
5.1727285569375E+14
Volume
8.8500012868472E+21
Surface area
2.069091422775E+15
Circumference
80624080.853028
Perimeter
51326884
Area
164653063821841
Diagonal
18146793.866788
Surface area
987918382931046
Volume
2.1127821767571E+21
Space diagonal
22225192.720549
Perimeter
38495163
Area
71296868040327
Altitude
11112596.360274
Surface area
71296868040327
Volume
2.489937673925E+20
Height
6048931.2889292