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12393032975 = 526173111323
BaseRepresentation
bin10111000101010111…
…01010110100001111
31011222200200022020022
423202223222310033
5200340104023400
65405425412355
7616053020321
oct134253526417
934880608208
1012393032975
11528a5a9114
12249a49a0bb
131226706c0b
14857ccb611
154c8009b85
hex2e2aead0f

12393032975 has 24 divisors (see below), whose sum is σ = 15833389872. Its totient is φ = 9618220800.

The previous prime is 12393032957. The next prime is 12393032989. The reversal of 12393032975 is 57923039321.

It is a Cunningham number, because it is equal to 1113242-1.

It is not a de Polignac number, because 12393032975 - 216 = 12392967439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55664 + ... + 166986.

It is an arithmetic number, because the mean of its divisors is an integer number (659724578).

Almost surely, 212393032975 is an apocalyptic number.

12393032975 is a deficient number, since it is larger than the sum of its proper divisors (3440356897).

12393032975 is a wasteful number, since it uses less digits than its factorization.

12393032975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111467 (or 111462 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 44.

The spelling of 12393032975 in words is "twelve billion, three hundred ninety-three million, thirty-two thousand, nine hundred seventy-five".

Divisors: 1 5 25 61 73 305 365 1525 1825 4453 22265 111323 111325 556615 2783075 6790703 8126579 33953515 40632895 169767575 203164475 495721319 2478606595 12393032975