Base | Representation |
---|---|
bin | 110010110010… |
… | …000110101001 |
3 | 221001100012210 |
4 | 302302012221 |
5 | 11401444200 |
6 | 1153155333 |
7 | 221103510 |
oct | 62620651 |
9 | 27040183 |
10 | 13312425 |
11 | 7572905 |
12 | 455bb49 |
13 | 29b1499 |
14 | 1aa7677 |
15 | 127e650 |
hex | cb21a9 |
13312425 has 24 divisors (see below), whose sum is σ = 25155136. Its totient is φ = 6085440.
The previous prime is 13312399. The next prime is 13312433. The reversal of 13312425 is 52421331.
It is not a de Polignac number, because 13312425 - 213 = 13304233 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a Duffinian number.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 12154 + ... + 13203.
Almost surely, 213312425 is an apocalyptic number.
13312425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13312425 is a deficient number, since it is larger than the sum of its proper divisors (11842711).
13312425 is a wasteful number, since it uses less digits than its factorization.
13312425 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25377 (or 25372 counting only the distinct ones).
The product of its digits is 720, while the sum is 21.
The square root of 13312425 is about 3648.6196019865. The cubic root of 13312425 is about 237.0022076029.
Adding to 13312425 its reverse (52421331), we get a palindrome (65733756).
The spelling of 13312425 in words is "thirteen million, three hundred twelve thousand, four hundred twenty-five".
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