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13682487 = 371350119
BaseRepresentation
bin110100001100…
…011100110111
3221202010211210
4310030130313
512000314422
61205132503
7224204430
oct64143467
927663753
1013682487
1177a5945
1246ba133
132ab0a60
141b62487
15130410c
hexd0c737

13682487 has 16 divisors (see below), whose sum is σ = 22453760. Its totient is φ = 7216992.

The previous prime is 13682453. The next prime is 13682497. The reversal of 13682487 is 78428631.

It is not a de Polignac number, because 13682487 - 27 = 13682359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13682407) 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 15 ways as a sum of consecutive naturals, for example, 24787 + ... + 25332.

It is an arithmetic number, because the mean of its divisors is an integer number (1403360).

Almost surely, 213682487 is an apocalyptic number.

13682487 is a deficient number, since it is larger than the sum of its proper divisors (8771273).

13682487 is a wasteful number, since it uses less digits than its factorization.

13682487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50142.

The product of its digits is 64512, while the sum is 39.

The square root of 13682487 is about 3698.9845903977. The cubic root of 13682487 is about 239.1782485916.

The spelling of 13682487 in words is "thirteen million, six hundred eighty-two thousand, four hundred eighty-seven".

Divisors: 1 3 7 13 21 39 91 273 50119 150357 350833 651547 1052499 1954641 4560829 13682487