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285960968 = 23293121997
BaseRepresentation
bin10001000010110…
…110101100001000
3201221002022200222
4101002312230020
51041201222333
644213045212
710041425306
oct2102665410
9657068628
10285960968
11137465787
127b926808
1347323997
1429d9b276
151a189298
hex110b6b08

285960968 has 16 divisors (see below), whose sum is σ = 538011180. Its totient is φ = 142491328.

The previous prime is 285960953. The next prime is 285960971. The reversal of 285960968 is 869069582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 187197124 + 98763844 = 13682^2 + 9938^2 .

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 3 ways as a sum of consecutive naturals, for example, 58655 + ... + 63342.

Almost surely, 2285960968 is an apocalyptic number.

It is an amenable number.

285960968 is a deficient number, since it is larger than the sum of its proper divisors (252050212).

285960968 is a wasteful number, since it uses less digits than its factorization.

285960968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122296 (or 122292 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 285960968 is about 16910.3804806397. The cubic root of 285960968 is about 658.8232536426.

The spelling of 285960968 in words is "two hundred eighty-five million, nine hundred sixty thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 293 586 1172 2344 121997 243994 487988 975976 35745121 71490242 142980484 285960968