12421905 is an odd 8-digits composite number following 12421904
and preceding 12421906 . In scientific notation, it is written as 1.2421905 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 6625008 positive integers (up to 12421905) that are relatively prime to 12421905.
12421905 has 4 divisors, whose sum is 13250048
The reverse of 12421905 is 50912421
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twelve million four hundred twenty-one thousand nine hundred five
Scientific notation
1.2421905 × 10^7
Engineering notation
1.2421905 × 10^6
Prime Factorization
15 × 828127
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12421905
Product of the distinct prime numbers
The prime factorization of 12421905 is 15 × 828127.
Since it has a total of 2 prime factors.
9 , 8 , 38 , 63 , 131 , 689 , 4268 , 2866 , 49805 , 41634 , 267198 , 574402 , 6187809 , 7959140 , 12928293 , 86917166 , 489238090 , 863435444 , 9313076850 , 3592681847
n×2
24843810
n×3
37265715
n×4
49687620
n×5
62109525
n÷2
6210952.5
n÷3
4140635
n÷3
3105476.25
n÷5
2484381
n2
154303723829025
n3
1.9167461985504E+21
n4
2.3809639187504E+28
n5
2.9576107607145E+35
2 √n
3524.4723009268
3 √n
231.59511848344
4 √n
59.367266240975
5 √n
26.232376729054
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
-12421904
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 12421905 can be divided by 4 positive divisors.
The sum of these divisors (counting 12421905) is 1, the average is 0.25.
Base
System
Value
2
Binary
101111011000101100010001
3
Ternary
212101002122120
4
Quaternary
233120230101
5
Quinary
11140000110
6
Senary
1122124453
8
Octal
57305421
10
Decimal
12421905
12
Duodecimal
41b0729
16
Hexadecimal
bd8b11
20
Vigesimal
3hcef5
36
Base36
7e8sx
md5
d6ca3af6abefc2871bfa44f10a3230a8
sha1
086193eec883961289ba527065737dfb5e60aa5b
sha256
154373316de2e7b7a28c165194eae0505555f7a9d01d8da9cb0e5a22e6b712e5
sha512
77f3676a98ae4afe40427418b568707470e6989b60c3eb7105ee54039529dbfda833dd24e850aa4c52ed8c6e4d08b19545eac51a70b0243ce123e0d3b651861b
ripemd-160
f26c2f13401c49fa15316d33f95838dd74a918c9
Diameter
24843810
Circumference
78049130.983181
Area
4.8475944520281E+14
Volume
8.0288477015494E+21
Surface area
1.9390377808113E+15
Circumference
78049130.983181
Perimeter
49687620
Area
154303723829025
Diagonal
17567226.52151
Surface area
925822342974150
Volume
1.9167461985504E+21
Space diagonal
21515370.586794
Perimeter
37265715
Area
66815472367237
Altitude
10757685.293397
Surface area
66815472367237
Volume
2.2589070580142E+20
Height
5855742.1738367