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13688284 = 2219233773
BaseRepresentation
bin110100001101…
…110111011100
3221202102210111
4310031313130
512001011114
61205215404
7224230351
oct64156734
927672714
1013688284
1177aa235
124701564
132ab359c
141b64628
151305bc4
hexd0dddc

13688284 has 24 divisors (see below), whose sum is σ = 25356240. Its totient is φ = 6447744.

The previous prime is 13688273. The next prime is 13688293. The reversal of 13688284 is 48288631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17322 + ... + 18094.

It is an arithmetic number, because the mean of its divisors is an integer number (1056510).

Almost surely, 213688284 is an apocalyptic number.

It is an amenable number.

13688284 is a deficient number, since it is larger than the sum of its proper divisors (11667956).

13688284 is a wasteful number, since it uses less digits than its factorization.

13688284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1027 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 13688284 is about 3699.7681008409. The cubic root of 13688284 is about 239.2120221919.

The spelling of 13688284 in words is "thirteen million, six hundred eighty-eight thousand, two hundred eighty-four".

Divisors: 1 2 4 19 38 76 233 466 773 932 1546 3092 4427 8854 14687 17708 29374 58748 180109 360218 720436 3422071 6844142 13688284