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13886829 = 331146757
BaseRepresentation
bin110100111110…
…010101101101
3222010112011000
4310332111231
512023334304
61213350513
7226015245
oct64762555
928115130
1013886829
117925420
124798439
132b52a78
141bb6b25
151344939
hexd3e56d

13886829 has 16 divisors (see below), whose sum is σ = 22443840. Its totient is φ = 8416080.

The previous prime is 13886827. The next prime is 13886837. The reversal of 13886829 is 92868831.

It is not a de Polignac number, because 13886829 - 21 = 13886827 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13886827) 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, 23082 + ... + 23675.

It is an arithmetic number, because the mean of its divisors is an integer number (1402740).

Almost surely, 213886829 is an apocalyptic number.

It is an amenable number.

13886829 is a deficient number, since it is larger than the sum of its proper divisors (8557011).

13886829 is a wasteful number, since it uses less digits than its factorization.

13886829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46777 (or 46771 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 13886829 is about 3726.5035891570. The cubic root of 13886829 is about 240.3630443016.

Subtracting from 13886829 its product of digits (165888), we obtain a triangular number (13720941 = T5238).

The spelling of 13886829 in words is "thirteen million, eight hundred eighty-six thousand, eight hundred twenty-nine".

Divisors: 1 3 9 11 27 33 99 297 46757 140271 420813 514327 1262439 1542981 4628943 13886829