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12946285 = 511401587
BaseRepresentation
bin110001011000…
…101101101101
3220100201222001
4301120231231
511303240120
61141252301
7215020162
oct61305555
926321861
1012946285
117342810
124404091
1328b3931
141a10069
15120ae0a
hexc58b6d

12946285 has 16 divisors (see below), whose sum is σ = 17019072. Its totient is φ = 9376000.

The previous prime is 12946273. The next prime is 12946289. The reversal of 12946285 is 58264921.

It is not a de Polignac number, because 12946285 - 223 = 4557677 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 (12946289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21762 + ... + 22348.

It is an arithmetic number, because the mean of its divisors is an integer number (1063692).

Almost surely, 212946285 is an apocalyptic number.

It is an amenable number.

12946285 is a deficient number, since it is larger than the sum of its proper divisors (4072787).

12946285 is a wasteful number, since it uses less digits than its factorization.

12946285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its digits is 34560, while the sum is 37.

The square root of 12946285 is about 3598.0946346643. The cubic root of 12946285 is about 234.8091705674.

It can be divided in two parts, 12946 and 285, that added together give a palindrome (13231).

The spelling of 12946285 in words is "twelve million, nine hundred forty-six thousand, two hundred eighty-five".

Divisors: 1 5 11 55 401 587 2005 2935 4411 6457 22055 32285 235387 1176935 2589257 12946285