12643721 is an odd 8-digits composite number following 12643720
and preceding 12643722 . In scientific notation, it is written as 1.2643721 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 11457072 positive integers (up to 12643721) that are relatively prime to 12643721.
12643721 has 4 divisors, whose sum is 12673092
The reverse of 12643721 is 12734621
Previous prime number is 437
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twelve million six hundred forty-three thousand seven hundred twenty-one
Scientific notation
1.2643721 × 10^7
Engineering notation
1.2643721 × 10^6
Prime Factorization
437 × 28933
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12643721
Product of the distinct prime numbers
The prime factorization of 12643721 is 437 × 28933.
Since it has a total of 2 prime factors.
7 , 8 , 15 , 21 , 59 , 88 , 4701 , 2141 , 52640 , 74773 , 942250 , 321076 , 8219409 , 9948661 , 2540301 , 8431559 , 373345631 , 837993869 , 347060907 , 1100168424
n×2
25287442
n×3
37931163
n×4
50574884
n×5
63218605
n÷2
6321860.5
n÷3
4214573.6666667
n÷3
3160930.25
n÷5
2528744.2
n2
159863680725841
n3
2.0212717771306E+21
n4
2.5556396415214E+28
n5
3.2312794603936E+35
2 √n
3555.8010349287
3 √n
232.96551277221
4 √n
59.630537771587
5 √n
26.325400122887
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
-12643720
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 12643721 can be divided by 4 positive divisors.
The sum of these divisors (counting 12643721) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000001110110110001001
3
Ternary
212210100220222
4
Quaternary
300032312021
5
Quinary
11214044341
6
Senary
1130555425
8
Octal
60166611
10
Decimal
12643721
12
Duodecimal
4298b75
16
Hexadecimal
c0ed89
20
Vigesimal
3j0961
36
Base36
7izyh
md5
da444e8e91e450bacfc91a6158b5f242
sha1
321f9f3b6d7bf8335df56adb7cf4785467a8643b
sha256
26ab134b446dc513f301bac71f1b6fb89aa8b7eee8d47f35c2846a0ba364061b
sha512
15bf9a4193d21e0c0f7d5473134e855a2c7e0f220f50fb57a77e50f79c6906a48f4f5de60d2641bcc159e026da8db23c7f44ebc208d67888ba5dae0f38a39a32
ripemd-160
1cbb42a76948726952f6e9e067538edc81647037
Diameter
25287442
Circumference
79442842.015278
Area
5.0222656494413E+14
Volume
8.4666834212559E+21
Surface area
2.0089062597765E+15
Circumference
79442842.015278
Perimeter
50574884
Area
159863680725841
Diagonal
17880921.717062
Surface area
959182084355046
Volume
2.0212717771306E+21
Space diagonal
21899567.168726
Perimeter
37931163
Area
69223004325532
Altitude
10949783.584363
Surface area
69223004325532
Volume
2.3820916337167E+20
Height
5960307.2390205