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13165660 = 2252328621
BaseRepresentation
bin110010001110…
…010001011100
3220202212220001
4302032101130
511332300120
61150104044
7216622564
oct62162134
926685801
1013165660
117482612
1244ab024
13295c741
141a69da4
151250e0a
hexc8e45c

13165660 has 24 divisors (see below), whose sum is σ = 28850976. Its totient is φ = 5037120.

The previous prime is 13165657. The next prime is 13165661. The reversal of 13165660 is 6656131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13165661) 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 7 ways as a sum of consecutive naturals, for example, 13851 + ... + 14770.

It is an arithmetic number, because the mean of its divisors is an integer number (1202124).

Almost surely, 213165660 is an apocalyptic number.

13165660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13165660 is an abundant number, since it is smaller than the sum of its proper divisors (15685316).

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

13165660 is a wasteful number, since it uses less digits than its factorization.

13165660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28653 (or 28651 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 13165660 is about 3628.4514603340. The cubic root of 13165660 is about 236.1280306932.

The spelling of 13165660 in words is "thirteen million, one hundred sixty-five thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 28621 57242 114484 143105 286210 572420 658283 1316566 2633132 3291415 6582830 13165660