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52005090 = 2351991237
BaseRepresentation
bin1100011001100…
…0100011100010
310121212010120110
43012120203202
5101303130330
65054352150
71201015224
oct306304342
9117763513
1052005090
11273a0215
12154bb656
13aa0ac57
146c9a414
154873db0
hex31988e2

52005090 has 32 divisors (see below), whose sum is σ = 131382720. Its totient is φ = 13137984.

The previous prime is 52005089. The next prime is 52005119. The reversal of 52005090 is 9050025.

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 15 ways as a sum of consecutive naturals, for example, 45049 + ... + 46188.

It is an arithmetic number, because the mean of its divisors is an integer number (4105710).

Almost surely, 252005090 is an apocalyptic number.

52005090 is an abundant number, since it is smaller than the sum of its proper divisors (79377630).

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

52005090 is a wasteful number, since it uses less digits than its factorization.

52005090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91266.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 52005090 is about 7211.4554702917. The cubic root of 52005090 is about 373.2632937984.

The spelling of 52005090 in words is "fifty-two million, five thousand, ninety".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 91237 182474 273711 456185 547422 912370 1368555 1733503 2737110 3467006 5200509 8667515 10401018 17335030 26002545 52005090