Base | Representation |
---|---|
bin | 110001010110… |
… | …011101000001 |
3 | 220100021021002 |
4 | 301112131001 |
5 | 11302441100 |
6 | 1141141345 |
7 | 214651163 |
oct | 61263501 |
9 | 26307232 |
10 | 12937025 |
11 | 7336862 |
12 | 43ba855 |
13 | 28ac65a |
14 | 1a0a933 |
15 | 12082d5 |
hex | c56741 |
12937025 has 6 divisors (see below), whose sum is σ = 16041942. Its totient is φ = 10349600.
The previous prime is 12937021. The next prime is 12937027. The reversal of 12937025 is 52073921.
It can be written as a sum of positive squares in 3 ways, for example, as 1620529 + 11316496 = 1273^2 + 3364^2 .
It is not a de Polignac number, because 12937025 - 22 = 12937021 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12937021) 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 5 ways as a sum of consecutive naturals, for example, 258716 + ... + 258765.
It is an arithmetic number, because the mean of its divisors is an integer number (2673657).
Almost surely, 212937025 is an apocalyptic number.
It is an amenable number.
12937025 is a deficient number, since it is larger than the sum of its proper divisors (3104917).
12937025 is an equidigital number, since it uses as much as digits as its factorization.
12937025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 517491 (or 517486 counting only the distinct ones).
The product of its (nonzero) digits is 3780, while the sum is 29.
The square root of 12937025 is about 3596.8076123140. The cubic root of 12937025 is about 234.7531737691.
The spelling of 12937025 in words is "twelve million, nine hundred thirty-seven thousand, twenty-five".
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