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13936678 = 272142211
BaseRepresentation
bin110101001010…
…100000100110
3222020001112021
4311022200212
512031433203
61214413354
7226313500
oct65124046
928201467
1013936678
117959918
12480125a
132b6c672
141bcad70
1513545bd
hexd4a826

13936678 has 12 divisors (see below), whose sum is σ = 24318252. Its totient is φ = 5972820.

The previous prime is 13936673. The next prime is 13936691. The reversal of 13936678 is 87663931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13936673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71008 + ... + 71203.

It is an arithmetic number, because the mean of its divisors is an integer number (2026521).

Almost surely, 213936678 is an apocalyptic number.

13936678 is a deficient number, since it is larger than the sum of its proper divisors (10381574).

13936678 is a wasteful number, since it uses less digits than its factorization.

13936678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142227 (or 142220 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 13936678 is about 3733.1860387610. The cubic root of 13936678 is about 240.6503080819.

The spelling of 13936678 in words is "thirteen million, nine hundred thirty-six thousand, six hundred seventy-eight".

Divisors: 1 2 7 14 49 98 142211 284422 995477 1990954 6968339 13936678