12921809 is an odd 8-digits prime number following 12921808
and preceding 12921810 . In scientific notation, it is written as 1.2921809 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 12921808 positive integers (up to 12921809) that are relatively prime to 12921809.
12921809 has 2 divisors, whose sum is 12921810
The reverse of 12921809 is 90812921
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twelve million nine hundred twenty-one thousand eight hundred nine
Scientific notation
1.2921809 × 10^7
Engineering notation
1.2921809 × 10^6
Prime Factorization
12921809
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
12921809
Product of the distinct prime numbers
The prime factorization of 12921809 is 12921809.
Since it has a total of 1 prime factors.
6 , 9 , 44 , 8 , 847 , 799 , 3127 , 2174 , 5308 , 90900 , 526522 , 126295 , 2671254 , 2994462 , 75189568 , 85847750 , 581918776 , 175737566 , 6631036523 , 869979786
n×2
25843618
n×3
38765427
n×4
51687236
n×5
64609045
n÷2
6460904.5
n÷3
4307269.6666667
n÷3
3230452.25
n÷5
2584361.8
n2
166973147832481
n3
2.1575951244201E+21
n4
2.7880032097088E+28
n5
3.6026044967243E+35
2 √n
3594.6917809459
3 √n
234.6611019668
4 √n
59.955748522939
5 √n
26.440195588402
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
12921810
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
6460905
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
3594.6919200399
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998452229
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12921809 can be divided by 2 positive divisors.
The sum of these divisors (counting 12921809) is 12921810, the average is 6460905.
Base
System
Value
2
Binary
110001010010101111010001
3
Ternary
220022111101112
4
Quaternary
301102233101
5
Quinary
11301444214
6
Senary
1140543105
8
Octal
61225721
10
Decimal
12921809
12
Duodecimal
43b1a95
16
Hexadecimal
c52bd1
20
Vigesimal
40f4a9
36
Base36
7oyj5
md5
f5edd849649343746fcf0184ad313248
sha1
a1fa106c19c764cebe5fbf936b0f0c4956bafea5
sha256
5e6b5c2328f736f653ef3ab6cb1537902936a1638d399b76951bb524a77ba7fe
sha512
bdf77a83a1bb2c8b14641e6c281512451937705459368e7d9ba6a2d3da54f2ced769e141d7ed0226c11280a5621c93d6fac377271846e5ab8e82a563813e4c6c
ripemd-160
47f72fc97b209351ab6c9f48213e7f51bfb2068e
Diameter
25843618
Circumference
81190120.450981
Area
5.2456161457728E+14
Volume
9.0377133230657E+21
Surface area
2.0982464583091E+15
Circumference
81190120.450981
Perimeter
51687236
Area
166973147832481
Diagonal
18274197.538195
Surface area
1001838886994886
Volume
2.1575951244201E+21
Space diagonal
22381229.713701
Perimeter
38765427
Area
72301493886392
Altitude
11190614.85685
Surface area
72301493886392
Volume
2.5427502392208E+20
Height
6091399.1793982