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528680256 = 26313211811
BaseRepresentation
bin11111100000110…
…000010101000000
31100211210201222020
4133200300111000
52040320232011
6124243241440
716046464566
oct3740602500
91324721866
10528680256
11251476335
12129079280
13856b7470
14502dda36
1531631006
hex1f830540

528680256 has 56 divisors (see below), whose sum is σ = 1506406944. Its totient is φ = 162670080.

The previous prime is 528680249. The next prime is 528680267. The reversal of 528680256 is 652086825.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103410 + ... + 108401.

It is an arithmetic number, because the mean of its divisors is an integer number (26900124).

Almost surely, 2528680256 is an apocalyptic number.

It is an amenable number.

528680256 is an abundant number, since it is smaller than the sum of its proper divisors (977726688).

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

528680256 is a wasteful number, since it uses less digits than its factorization.

528680256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211839 (or 211829 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 528680256 is about 22993.0479928173. The cubic root of 528680256 is about 808.5949609441.

The spelling of 528680256 in words is "five hundred twenty-eight million, six hundred eighty thousand, two hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 156 192 208 312 416 624 832 1248 2496 211811 423622 635433 847244 1270866 1694488 2541732 2753543 3388976 5083464 5507086 6777952 8260629 10166928 11014172 13555904 16521258 20333856 22028344 33042516 40667712 44056688 66085032 88113376 132170064 176226752 264340128 528680256