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12808026 = 2327119241
BaseRepresentation
bin110000110110…
…111101011010
3220002201022100
4300312331122
511234324101
61134304230
7213603120
oct60667532
926081270
1012808026
117258950
124358076
132865a1a
1419b5910
1511cee86
hexc36f5a

12808026 has 48 divisors (see below), whose sum is σ = 34602048. Its totient is φ = 3326400.

The previous prime is 12808009. The next prime is 12808039. The reversal of 12808026 is 62080821.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3235 + ... + 6006.

It is an arithmetic number, because the mean of its divisors is an integer number (720876).

Almost surely, 212808026 is an apocalyptic number.

12808026 is an abundant number, since it is smaller than the sum of its proper divisors (21794022).

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

12808026 is a wasteful number, since it uses less digits than its factorization.

12808026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9267 (or 9264 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 12808026 is about 3578.8302558238. The cubic root of 12808026 is about 233.9703008549.

Adding to 12808026 its reverse (62080821), we get a palindrome (74888847).

The spelling of 12808026 in words is "twelve million, eight hundred eight thousand, twenty-six".

Divisors: 1 2 3 6 7 9 11 14 18 21 22 33 42 63 66 77 99 126 154 198 231 462 693 1386 9241 18482 27723 55446 64687 83169 101651 129374 166338 194061 203302 304953 388122 582183 609906 711557 914859 1164366 1423114 1829718 2134671 4269342 6404013 12808026