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13328860 = 2254211583
BaseRepresentation
bin110010110110…
…000111011100
3221002011202111
4302312013130
511403010420
61153403404
7221202436
oct62660734
927064674
1013328860
117584196
124569564
1329b8acc
141aad656
15128445a
hexcb61dc

13328860 has 24 divisors (see below), whose sum is σ = 28074816. Its totient is φ = 5315520.

The previous prime is 13328837. The next prime is 13328873. The reversal of 13328860 is 6882331.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7629 + ... + 9211.

It is an arithmetic number, because the mean of its divisors is an integer number (1169784).

Almost surely, 213328860 is an apocalyptic number.

13328860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13328860 is an abundant number, since it is smaller than the sum of its proper divisors (14745956).

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

13328860 is a wasteful number, since it uses less digits than its factorization.

13328860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013 (or 2011 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 13328860 is about 3650.8711289225. The cubic root of 13328860 is about 237.0996987175.

The spelling of 13328860 in words is "thirteen million, three hundred twenty-eight thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 421 842 1583 1684 2105 3166 4210 6332 7915 8420 15830 31660 666443 1332886 2665772 3332215 6664430 13328860