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13689752 = 237921661
BaseRepresentation
bin110100001110…
…001110011000
3221202111210212
4310032032120
512001033002
61205230252
7224234546
oct64161630
927674725
1013689752
11780034a
124702388
132ab415b
141b64d96
151306352
hexd0e398

13689752 has 16 divisors (see below), whose sum is σ = 25994400. Its totient is φ = 6757920.

The previous prime is 13689749. The next prime is 13689773. The reversal of 13689752 is 25798631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10199 + ... + 11462.

It is an arithmetic number, because the mean of its divisors is an integer number (1624650).

Almost surely, 213689752 is an apocalyptic number.

It is an amenable number.

13689752 is a deficient number, since it is larger than the sum of its proper divisors (12304648).

13689752 is a wasteful number, since it uses less digits than its factorization.

13689752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21746 (or 21742 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 13689752 is about 3699.9664863347. The cubic root of 13689752 is about 239.2205733172.

It can be divided in two parts, 13689 and 752, that added together give a palindrome (14441).

The spelling of 13689752 in words is "thirteen million, six hundred eighty-nine thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 79 158 316 632 21661 43322 86644 173288 1711219 3422438 6844876 13689752