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528365940 = 223543204793
BaseRepresentation
bin11111011111100…
…011100101110100
31100211012202210220
4133133203211310
52040230202230
6124232414340
716044015324
oct3737434564
91324182726
10528365940
11251281173
12128b473b0
138560738b
145025b284
15315bcd10
hex1f7e3974

528365940 has 48 divisors (see below), whose sum is σ = 1513837248. Its totient is φ = 137620224.

The previous prime is 528365939. The next prime is 528365951. The reversal of 528365940 is 49563825.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 528365892 and 528365901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99817 + ... + 104976.

It is an arithmetic number, because the mean of its divisors is an integer number (31538276).

Almost surely, 2528365940 is an apocalyptic number.

It is an amenable number.

528365940 is an abundant number, since it is smaller than the sum of its proper divisors (985471308).

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

528365940 is a wasteful number, since it uses less digits than its factorization.

528365940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204848 (or 204846 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 528365940 is about 22986.2119541259. The cubic root of 528365940 is about 808.4346846619.

The spelling of 528365940 in words is "five hundred twenty-eight million, three hundred sixty-five thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 204793 409586 614379 819172 1023965 1228758 2047930 2457516 3071895 4095860 6143790 8806099 12287580 17612198 26418297 35224396 44030495 52836594 88060990 105673188 132091485 176121980 264182970 528365940