Base | Representation |
---|---|
bin | 110001010110… |
… | …010000110001 |
3 | 220100020012001 |
4 | 301112100301 |
5 | 11302424431 |
6 | 1141134001 |
7 | 214645663 |
oct | 61262061 |
9 | 26306161 |
10 | 12936241 |
11 | 733620a |
12 | 43ba301 |
13 | 28ac1a6 |
14 | 1a0a533 |
15 | 1207e61 |
hex | c56431 |
12936241 has 4 divisors (see below), whose sum is σ = 12943872. Its totient is φ = 12928612.
The previous prime is 12936227. The next prime is 12936247. The reversal of 12936241 is 14263921.
12936241 is a nontrivial binomial coefficient, being equal to C(5087, 2).
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is not a de Polignac number, because 12936241 - 27 = 12936113 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12936247) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 5086.
It is an arithmetic number, because the mean of its divisors is an integer number (3235968).
Almost surely, 212936241 is an apocalyptic number.
12936241 is the 5086-th triangular number.
12936241 is the 1696-th centered nonagonal number.
It is an amenable number.
12936241 is a deficient number, since it is larger than the sum of its proper divisors (7631).
12936241 is an equidigital number, since it uses as much as digits as its factorization.
12936241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7630.
The product of its digits is 2592, while the sum is 28.
The square root of 12936241 is about 3596.6986251283. The cubic root of 12936241 is about 234.7484315607.
The spelling of 12936241 in words is "twelve million, nine hundred thirty-six thousand, two hundred forty-one".
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