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13936560 = 2435115279
BaseRepresentation
bin110101001010…
…011110110000
3222020001100220
4311022132300
512031432220
61214413040
7226313241
oct65123660
928201326
1013936560
117959820
124801180
132b6c5b1
141bcacc8
151354540
hexd4a7b0

13936560 has 80 divisors (see below), whose sum is σ = 47139840. Its totient is φ = 3377920.

The previous prime is 13936547. The next prime is 13936579. The reversal of 13936560 is 6563931.

13936560 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

13936560 is a nontrivial binomial coefficient, being equal to C(5280, 2).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×139365603 (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 1 + ... + 5279.

It is an arithmetic number, because the mean of its divisors is an integer number (589248).

Almost surely, 213936560 is an apocalyptic number.

13936560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13936560 is the 5279-th triangular number and also the 2640-th hexagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13936560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23569920).

13936560 is an abundant number, since it is smaller than the sum of its proper divisors (33203280).

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

13936560 is a wasteful number, since it uses less digits than its factorization.

13936560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5306 (or 5300 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 13936560 is about 3733.1702345326. The cubic root of 13936560 is about 240.6496288953.

The spelling of 13936560 in words is "thirteen million, nine hundred thirty-six thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 132 165 176 220 240 264 330 440 528 660 880 1320 2640 5279 10558 15837 21116 26395 31674 42232 52790 58069 63348 79185 84464 105580 116138 126696 158370 174207 211160 232276 253392 290345 316740 348414 422320 464552 580690 633480 696828 871035 929104 1161380 1266960 1393656 1742070 2322760 2787312 3484140 4645520 6968280 13936560