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13688883 = 3213791481
BaseRepresentation
bin110100001110…
…000000110011
3221202110121200
4310032000303
512001021013
61205222243
7224232165
oct64160063
927673550
1013688883
1177aa72a
124701983
132ab3940
141b64935
151305e73
hexd0e033

13688883 has 24 divisors (see below), whose sum is σ = 21577920. Its totient is φ = 8311680.

The previous prime is 13688881. The next prime is 13688897. The reversal of 13688883 is 38888631.

It is not a de Polignac number, because 13688883 - 21 = 13688881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13688881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8503 + ... + 9983.

It is an arithmetic number, because the mean of its divisors is an integer number (899080).

Almost surely, 213688883 is an apocalyptic number.

13688883 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13688883 is a deficient number, since it is larger than the sum of its proper divisors (7889037).

13688883 is a wasteful number, since it uses less digits than its factorization.

13688883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579 (or 1576 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 13688883 is about 3699.8490509749. The cubic root of 13688883 is about 239.2155114511.

The spelling of 13688883 in words is "thirteen million, six hundred eighty-eight thousand, eight hundred eighty-three".

Divisors: 1 3 9 13 39 79 117 237 711 1027 1481 3081 4443 9243 13329 19253 57759 116999 173277 350997 1052991 1520987 4562961 13688883