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12874293 = 326312267
BaseRepresentation
bin110001000111…
…001000110101
3220020002012200
4301013020311
511243434133
61135535113
7214300245
oct61071065
926202180
1012874293
1172a3713
12438a499
132889c33
1419d1b25
1511e4913
hexc47235

12874293 has 12 divisors (see below), whose sum is σ = 18633888. Its totient is φ = 8565480.

The previous prime is 12874291. The next prime is 12874327. The reversal of 12874293 is 39247821.

It is not a de Polignac number, because 12874293 - 21 = 12874291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12874291) 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 11 ways as a sum of consecutive naturals, for example, 4546 + ... + 6812.

It is an arithmetic number, because the mean of its divisors is an integer number (1552824).

Almost surely, 212874293 is an apocalyptic number.

It is an amenable number.

12874293 is a deficient number, since it is larger than the sum of its proper divisors (5759595).

12874293 is a wasteful number, since it uses less digits than its factorization.

12874293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904 (or 2901 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 12874293 is about 3588.0765042011. The cubic root of 12874293 is about 234.3731172115.

The spelling of 12874293 in words is "twelve million, eight hundred seventy-four thousand, two hundred ninety-three".

Divisors: 1 3 9 631 1893 2267 5679 6801 20403 1430477 4291431 12874293