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12530826 = 2327119041
BaseRepresentation
bin101111110011…
…010010001010
3212120122001200
4233303102022
511201441301
61124325030
7211340010
oct57632212
925518050
1012530826
117089660
124243776
1327997b9
1419428b0
151177c86
hexbf348a

12530826 has 48 divisors (see below), whose sum is σ = 33853248. Its totient is φ = 3254400.

The previous prime is 12530821. The next prime is 12530863. The reversal of 12530826 is 62803521.

It is a self number, because there is not a number n which added to its sum of digits gives 12530826.

It is not an unprimeable number, because it can be changed into a prime (12530821) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3135 + ... + 5906.

It is an arithmetic number, because the mean of its divisors is an integer number (705276).

Almost surely, 212530826 is an apocalyptic number.

12530826 is an abundant number, since it is smaller than the sum of its proper divisors (21322422).

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

12530826 is a wasteful number, since it uses less digits than its factorization.

12530826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9067 (or 9064 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 12530826 is about 3539.8906762780. The cubic root of 12530826 is about 232.2700605624.

The spelling of 12530826 in words is "twelve million, five hundred thirty thousand, eight hundred 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 9041 18082 27123 54246 63287 81369 99451 126574 162738 189861 198902 298353 379722 569583 596706 696157 895059 1139166 1392314 1790118 2088471 4176942 6265413 12530826