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13000668 = 2237115259
BaseRepresentation
bin110001100101…
…111111011100
3220110111120020
4301211333130
511312010133
61142352140
7215334552
oct61457734
926414506
1013000668
11737a65a
12442b650
132902605
141a25bd2
15121c0b3
hexc65fdc

13000668 has 24 divisors (see below), whose sum is σ = 30764160. Its totient is φ = 4272240.

The previous prime is 13000667. The next prime is 13000679. The reversal of 13000668 is 86600031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6778 + ... + 8481.

It is an arithmetic number, because the mean of its divisors is an integer number (1281840).

Almost surely, 213000668 is an apocalyptic number.

It is an amenable number.

13000668 is an abundant number, since it is smaller than the sum of its proper divisors (17763492).

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

13000668 is a wasteful number, since it uses less digits than its factorization.

13000668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15337 (or 15335 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 13000668 is about 3605.6439092068. The cubic root of 13000668 is about 235.1374961174.

Adding to 13000668 its reverse (86600031), we get a palindrome (99600699).

The spelling of 13000668 in words is "thirteen million, six hundred sixty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 15259 30518 45777 61036 91554 183108 1083389 2166778 3250167 4333556 6500334 13000668