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28230412626 = 2331340214263
BaseRepresentation
bin11010010010101010…
…011110100101010010
32200212102111112212000
4122102222132211102
5430303441201001
620545135414430
72016401355663
oct322252364522
980772445760
1028230412626
1110a77371929
12557a384416
13287b892a90
14151b40b36a
15b035cba86
hex692a9e952

28230412626 has 32 divisors (see below), whose sum is σ = 67559963520. Its totient is φ = 8686280592.

The previous prime is 28230412549. The next prime is 28230412669. The reversal of 28230412626 is 62621403282.

28230412626 is a `hidden beast` number, since 2 + 8 + 23 + 0 + 4 + 1 + 2 + 626 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20106430 + ... + 20107833.

It is an arithmetic number, because the mean of its divisors is an integer number (2111248860).

Almost surely, 228230412626 is an apocalyptic number.

28230412626 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28230412626 is an abundant number, since it is smaller than the sum of its proper divisors (39329550894).

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

28230412626 is a wasteful number, since it uses less digits than its factorization.

28230412626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40214287 (or 40214281 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 28230412626 in words is "twenty-eight billion, two hundred thirty million, four hundred twelve thousand, six hundred twenty-six".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 117 234 351 702 40214263 80428526 120642789 241285578 361928367 522785419 723856734 1045570838 1085785101 1568356257 2171570202 3136712514 4705068771 9410137542 14115206313 28230412626