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11893047 = 3172310139
BaseRepresentation
bin101101010111…
…100100110111
3211101020012020
4231113210313
511021034142
61102524223
7203042415
oct55274467
924336166
1011893047
116793471
123b96673
13260540a
1418182b5
15109dcec
hexb57937

11893047 has 16 divisors (see below), whose sum is σ = 17521920. Its totient is φ = 7137152.

The previous prime is 11893039. The next prime is 11893051. The reversal of 11893047 is 74039811.

It is a cyclic number.

It is not a de Polignac number, because 11893047 - 23 = 11893039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11892999 and 11893017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11893247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3897 + ... + 6242.

It is an arithmetic number, because the mean of its divisors is an integer number (1095120).

Almost surely, 211893047 is an apocalyptic number.

11893047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11893047 is a deficient number, since it is larger than the sum of its proper divisors (5628873).

11893047 is a wasteful number, since it uses less digits than its factorization.

11893047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10182.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 11893047 is about 3448.6297278774. The cubic root of 11893047 is about 228.2606475920.

The spelling of 11893047 in words is "eleven million, eight hundred ninety-three thousand, forty-seven".

Divisors: 1 3 17 23 51 69 391 1173 10139 30417 172363 233197 517089 699591 3964349 11893047