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252545808 = 24326919559
BaseRepresentation
bin11110000110110…
…00101100010000
3122121012122201110
433003120230100
51004122431213
641020533320
76154414104
oct1703305420
9577178643
10252545808
1111a612449
12706b1240
13404243b8
142577d904
15172885c3
hexf0d8b10

252545808 has 40 divisors (see below), whose sum is σ = 654868800. Its totient is φ = 83864704.

The previous prime is 252545801. The next prime is 252545849. The reversal of 252545808 is 808545252.

It is not an unprimeable number, because it can be changed into a prime (252545801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3133 + ... + 22691.

It is an arithmetic number, because the mean of its divisors is an integer number (16371720).

Almost surely, 2252545808 is an apocalyptic number.

It is an amenable number.

252545808 is an abundant number, since it is smaller than the sum of its proper divisors (402322992).

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

252545808 is a wasteful number, since it uses less digits than its factorization.

252545808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19839 (or 19833 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 39.

The square root of 252545808 is about 15891.6899038460. The cubic root of 252545808 is about 632.0916520395.

The spelling of 252545808 in words is "two hundred fifty-two million, five hundred forty-five thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 269 538 807 1076 1614 2152 3228 4304 6456 12912 19559 39118 58677 78236 117354 156472 234708 312944 469416 938832 5261371 10522742 15784113 21045484 31568226 42090968 63136452 84181936 126272904 252545808