12391421 is an odd 8-digits composite number following 12391420
and preceding 12391422 . In scientific notation, it is written as 1.2391421 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 10539360 positive integers (up to 12391421) that are relatively prime to 12391421.
12391421 has 8 divisors, whose sum is 14270784
The reverse of 12391421 is 12419321
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twelve million three hundred ninety-one thousand four hundred twenty-one
Scientific notation
1.2391421 × 10^7
Engineering notation
1.2391421 × 10^6
Prime Factorization
7 × 131 × 13513
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12391421
Product of the distinct prime numbers
The prime factorization of 12391421 is 7 × 131 × 13513.
Since it has a total of 3 prime factors.
5 , 2 , 9 , 40 , 609 , 837 , 6161 , 5889 , 7565 , 76485 , 468310 , 329952 , 9385552 , 5729199 , 35968258 , 3161124 , 342974266 , 80245430 , 1498347112 , 9841933703
n×2
24782842
n×3
37174263
n×4
49565684
n×5
61957105
n÷2
6195710.5
n÷3
4130473.6666667
n÷3
3097855.25
n÷5
2478284.2
n2
153547314399241
n3
1.9026694161404E+21
n4
2.3576777759219E+28
n5
2.9214977903792E+35
2 √n
3520.1450254215
3 √n
231.40551448319
4 √n
59.330810085667
5 √n
26.219488948951
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
-12391420
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 12391421 can be divided by 8 positive divisors.
The sum of these divisors (counting 12391421) is 1, the average is 0.125.
Base
System
Value
2
Binary
101111010001001111111101
3
Ternary
212022112211112
4
Quaternary
233101033331
5
Quinary
11133011141
6
Senary
1121331405
8
Octal
57211775
10
Decimal
12391421
12
Duodecimal
4196b65
16
Hexadecimal
bd13fd
20
Vigesimal
3h8ib1
36
Base36
7dla5
md5
63f2441dfebebe99377cfc02e6ad9c90
sha1
f807621a03921e65e6b0763b1d6209871ac7079d
sha256
334c08c63ab3b3d6613e5f622e6cfc4b536bebaf906f63581c94ac42352a8744
sha512
d5bdebb07c8712104dc0c82615e8f53d40ee6cfb7f6db1940f4df71e1ea30f3712e20a56a360aeae18353ed01820b53224e14d3b4490719c6097d950496c085b
ripemd-160
1ace4f3070b623f180fbd69b27109caa01f915bc
Diameter
24782842
Circumference
77857594.362277
Area
4.823831148951E+14
Volume
7.9698830132754E+21
Surface area
1.9295324595804E+15
Circumference
77857594.362277
Perimeter
49565684
Area
153547314399241
Diagonal
17524115.635275
Surface area
921283886395446
Volume
1.9026694161404E+21
Space diagonal
21462570.749976
Perimeter
37174263
Area
66487937476309
Altitude
10731285.374988
Surface area
66487937476309
Volume
2.2423174108485E+20
Height
5841371.8784249