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12828135 = 3519223103
BaseRepresentation
bin110000111011…
…110111100111
3220010201220010
4300323313213
511241000020
61134541303
7214015545
oct60736747
926121803
1012828135
117271a71
124367833
132871c18
1419bcd95
1511d5de0
hexc3bde7

12828135 has 48 divisors (see below), whose sum is σ = 22823424. Its totient is φ = 6139584.

The previous prime is 12828119. The next prime is 12828139. The reversal of 12828135 is 53182821.

It is not a de Polignac number, because 12828135 - 24 = 12828119 is a prime.

It is a super-3 number, since 3×128281353 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12828139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124494 + ... + 124596.

It is an arithmetic number, because the mean of its divisors is an integer number (475488).

Almost surely, 212828135 is an apocalyptic number.

12828135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12828135 is a deficient number, since it is larger than the sum of its proper divisors (9995289).

12828135 is a wasteful number, since it uses less digits than its factorization.

12828135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 153 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 12828135 is about 3581.6385914830. The cubic root of 12828135 is about 234.0926837171.

The spelling of 12828135 in words is "twelve million, eight hundred twenty-eight thousand, one hundred thirty-five".

Divisors: 1 3 5 15 19 23 57 69 95 103 115 285 309 345 361 437 515 1083 1311 1545 1805 1957 2185 2369 5415 5871 6555 7107 8303 9785 11845 24909 29355 35535 37183 41515 45011 111549 124545 135033 185915 225055 557745 675165 855209 2565627 4276045 12828135