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14187285 = 335715013
BaseRepresentation
bin110110000111…
…101100010101
3222200210022000
4312013230111
512112443120
61224025513
7231406230
oct66075425
928623260
1014187285
118010132
124902299
132c29758
141c54417
1513a3990
hexd87b15

14187285 has 32 divisors (see below), whose sum is σ = 28826880. Its totient is φ = 6485184.

The previous prime is 14187269. The next prime is 14187287. The reversal of 14187285 is 58278141.

It is not a de Polignac number, because 14187285 - 24 = 14187269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14187287) 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 31 ways as a sum of consecutive naturals, for example, 6562 + ... + 8451.

It is an arithmetic number, because the mean of its divisors is an integer number (900840).

Almost surely, 214187285 is an apocalyptic number.

14187285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

14187285 is an abundant number, since it is smaller than the sum of its proper divisors (14639595).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14187285 is a wasteful number, since it uses less digits than its factorization.

14187285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15034 (or 15028 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 14187285 is about 3766.6012531193. The cubic root of 14187285 is about 242.0841919570.

The spelling of 14187285 in words is "fourteen million, one hundred eighty-seven thousand, two hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 315 945 15013 45039 75065 105091 135117 225195 315273 405351 525455 675585 945819 1576365 2026755 2837457 4729095 14187285