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13729528 = 2323293183
BaseRepresentation
bin110100010111…
…111011111000
3221211112101001
4310113323320
512003321103
61210134344
7224461531
oct64277370
927745331
1013729528
11782821a
1247213b4
132ac92a7
141b75688
15131301d
hexd17ef8

13729528 has 64 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 6061440.

The previous prime is 13729517. The next prime is 13729537. The reversal of 13729528 is 82592731.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

Its product of digits (30240) is a multiple of the sum of its prime divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165375 + ... + 165457.

It is an arithmetic number, because the mean of its divisors is an integer number (453600).

Almost surely, 213729528 is an apocalyptic number.

It is an amenable number.

13729528 is an abundant number, since it is smaller than the sum of its proper divisors (15300872).

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

13729528 is a wasteful number, since it uses less digits than its factorization.

13729528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 168 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 13729528 is about 3705.3377713779. The cubic root of 13729528 is about 239.4520368910.

The spelling of 13729528 in words is "thirteen million, seven hundred twenty-nine thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 23 29 31 46 58 62 83 92 116 124 166 184 232 248 332 664 667 713 899 1334 1426 1798 1909 2407 2573 2668 2852 3596 3818 4814 5146 5336 5704 7192 7636 9628 10292 15272 19256 20584 20677 41354 55361 59179 74617 82708 110722 118358 149234 165416 221444 236716 298468 442888 473432 596936 1716191 3432382 6864764 13729528