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13797686 = 271951871
BaseRepresentation
bin110100101000…
…100100110110
3221221222212102
4310220210312
512013011221
61211422102
7225164330
oct64504466
927858772
1013797686
117874451
124754932
132b21316
141b92450
15132830b
hexd28936

13797686 has 16 divisors (see below), whose sum is σ = 24898560. Its totient is φ = 5601960.

The previous prime is 13797673. The next prime is 13797701. The reversal of 13797686 is 68679731.

It is a super-2 number, since 2×137976862 = 380752277909192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13797686.

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 7 ways as a sum of consecutive naturals, for example, 25670 + ... + 26201.

It is an arithmetic number, because the mean of its divisors is an integer number (1556160).

Almost surely, 213797686 is an apocalyptic number.

13797686 is a deficient number, since it is larger than the sum of its proper divisors (11100874).

13797686 is a wasteful number, since it uses less digits than its factorization.

13797686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51899.

The product of its digits is 381024, while the sum is 47.

The square root of 13797686 is about 3714.5236572137. The cubic root of 13797686 is about 239.8476231833.

The spelling of 13797686 in words is "thirteen million, seven hundred ninety-seven thousand, six hundred eighty-six".

Divisors: 1 2 7 14 19 38 133 266 51871 103742 363097 726194 985549 1971098 6898843 13797686