Base | Representation |
---|---|
bin | 110011111111… |
… | …001101001101 |
3 | 221122101102112 |
4 | 303333031031 |
5 | 11442100422 |
6 | 1204033405 |
7 | 223560320 |
oct | 63771515 |
9 | 27571375 |
10 | 13628237 |
11 | 7769107 |
12 | 4692865 |
13 | 2a9215c |
14 | 1b4a7b7 |
15 | 12e2ee2 |
hex | cff34d |
13628237 has 16 divisors (see below), whose sum is σ = 16733952. Its totient is φ = 10832640.
The previous prime is 13628227. The next prime is 13628257. The reversal of 13628237 is 73282631.
It is a happy number.
It is not a de Polignac number, because 13628237 - 24 = 13628221 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13628207) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7643 + ... + 9255.
It is an arithmetic number, because the mean of its divisors is an integer number (1045872).
Almost surely, 213628237 is an apocalyptic number.
13628237 is a gapful number since it is divisible by the number (17) formed by its first and last digit.
It is an amenable number.
13628237 is a deficient number, since it is larger than the sum of its proper divisors (3105715).
13628237 is a wasteful number, since it uses less digits than its factorization.
13628237 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1708.
The product of its digits is 12096, while the sum is 32.
The square root of 13628237 is about 3691.6442136262. The cubic root of 13628237 is about 238.8617221516.
The spelling of 13628237 in words is "thirteen million, six hundred twenty-eight thousand, two hundred thirty-seven".
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