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13728884 = 2213223883
BaseRepresentation
bin110100010111…
…110001110100
3221211111111012
4310113301310
512003311014
61210131352
7224456621
oct64276164
927744435
1013728884
117827794
124720b58
132ac8c00
141b75348
151312c3e
hexd17c74

13728884 has 36 divisors (see below), whose sum is σ = 27177696. Its totient is φ = 6054048.

The previous prime is 13728881. The next prime is 13728893. The reversal of 13728884 is 48882731.

It is a super-3 number, since 3×137288843 (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13728881) 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 11 ways as a sum of consecutive naturals, for example, 15107 + ... + 15989.

It is an arithmetic number, because the mean of its divisors is an integer number (754936).

Almost surely, 213728884 is an apocalyptic number.

It is an amenable number.

13728884 is a deficient number, since it is larger than the sum of its proper divisors (13448812).

13728884 is a wasteful number, since it uses less digits than its factorization.

13728884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 921 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 13728884 is about 3705.2508686997. The cubic root of 13728884 is about 239.4482929040.

The spelling of 13728884 in words is "thirteen million, seven hundred twenty-eight thousand, eight hundred eighty-four".

Divisors: 1 2 4 13 23 26 46 52 92 169 299 338 598 676 883 1196 1766 3532 3887 7774 11479 15548 20309 22958 40618 45916 81236 149227 264017 298454 528034 596908 1056068 3432221 6864442 13728884