Base | Representation |
---|---|
bin | 101111100100… |
… | …000010101001 |
3 | 212110110102100 |
4 | 233210002221 |
5 | 11142442033 |
6 | 1123124013 |
7 | 210660000 |
oct | 57440251 |
9 | 25413370 |
10 | 12468393 |
11 | 7046763 |
12 | 4213609 |
13 | 2777262 |
14 | 1927c37 |
15 | 1164513 |
hex | be40a9 |
12468393 has 30 divisors (see below), whose sum is σ = 21046714. Its totient is φ = 7112448.
The previous prime is 12468383. The next prime is 12468397. The reversal of 12468393 is 39386421.
It can be written as a sum of positive squares in only one way, i.e., 12446784 + 21609 = 3528^2 + 147^2 .
It is not a de Polignac number, because 12468393 - 24 = 12468377 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12468397) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 21321 + ... + 21897.
Almost surely, 212468393 is an apocalyptic number.
It is an amenable number.
12468393 is a deficient number, since it is larger than the sum of its proper divisors (8578321).
12468393 is an frugal number, since it uses more digits than its factorization.
12468393 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 611 (or 587 counting only the distinct ones).
The product of its digits is 31104, while the sum is 36.
The square root of 12468393 is about 3531.0611719425. The cubic root of 12468393 is about 231.8836676480.
The spelling of 12468393 in words is "twelve million, four hundred sixty-eight thousand, three hundred ninety-three".
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