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13293666 = 2331731423
BaseRepresentation
bin110010101101…
…100001100010
3221000101111000
4302231201202
511400344131
61152532430
7220665021
oct62554142
927011430
1013293666
11755a801
124551116
1329a5a99
141aa08b8
151278ce6
hexcad862

13293666 has 32 divisors (see below), whose sum is σ = 29733120. Its totient is φ = 4402512.

The previous prime is 13293653. The next prime is 13293667. The reversal of 13293666 is 66639231.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 13293666.

It is not an unprimeable number, because it can be changed into a prime (13293667) 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 15 ways as a sum of consecutive naturals, for example, 8631 + ... + 10053.

It is an arithmetic number, because the mean of its divisors is an integer number (929160).

Almost surely, 213293666 is an apocalyptic number.

13293666 is an abundant number, since it is smaller than the sum of its proper divisors (16439454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13293666 is a wasteful number, since it uses less digits than its factorization.

13293666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607 (or 1601 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 13293666 is about 3646.0479974899. The cubic root of 13293666 is about 236.8908325942.

The spelling of 13293666 in words is "thirteen million, two hundred ninety-three thousand, six hundred sixty-six".

Divisors: 1 2 3 6 9 18 27 54 173 346 519 1038 1423 1557 2846 3114 4269 4671 8538 9342 12807 25614 38421 76842 246179 492358 738537 1477074 2215611 4431222 6646833 13293666