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13689286 = 213526511
BaseRepresentation
bin110100001110…
…000111000110
3221202111011121
4310032013012
512001024121
61205224154
7224233312
oct64160706
927674147
1013689286
1177aaa66
12470205a
132ab3b90
141b64b42
151306141
hexd0e1c6

13689286 has 8 divisors (see below), whose sum is σ = 22113504. Its totient is φ = 6318120.

The previous prime is 13689283. The next prime is 13689293. The reversal of 13689286 is 68298631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13689281) by changing a digit.

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, 263230 + ... + 263281.

It is an arithmetic number, because the mean of its divisors is an integer number (2764188).

Almost surely, 213689286 is an apocalyptic number.

13689286 is a deficient number, since it is larger than the sum of its proper divisors (8424218).

13689286 is a wasteful number, since it uses less digits than its factorization.

13689286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526526.

The product of its digits is 124416, while the sum is 43.

The square root of 13689286 is about 3699.9035122554. The cubic root of 13689286 is about 239.2178589254.

The spelling of 13689286 in words is "thirteen million, six hundred eighty-nine thousand, two hundred eighty-six".

Divisors: 1 2 13 26 526511 1053022 6844643 13689286