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285480338 = 211131019883
BaseRepresentation
bin10001000001000…
…001010110010010
3201220011220101212
4101001001112102
51041040332323
644154500122
710034354123
oct2101012622
9656156355
10285480338
11137167670
127b734642
13471b5ca0
1429cb404a
151a0e1b78
hex11041592

285480338 has 32 divisors (see below), whose sum is σ = 508116672. Its totient is φ = 118584000.

The previous prime is 285480323. The next prime is 285480341. The reversal of 285480338 is 833084582.

It is a junction number, because it is equal to n+sod(n) for n = 285480295 and 285480304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23945 + ... + 33827.

It is an arithmetic number, because the mean of its divisors is an integer number (15878646).

Almost surely, 2285480338 is an apocalyptic number.

285480338 is a deficient number, since it is larger than the sum of its proper divisors (222636334).

285480338 is a wasteful number, since it uses less digits than its factorization.

285480338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010.

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 285480338 is about 16896.1634106681. The cubic root of 285480338 is about 658.4539400819.

The spelling of 285480338 in words is "two hundred eighty-five million, four hundred eighty thousand, three hundred thirty-eight".

Divisors: 1 2 11 13 22 26 101 143 202 286 1111 1313 2222 2626 9883 14443 19766 28886 108713 128479 217426 256958 998183 1413269 1996366 2826538 10980013 12976379 21960026 25952758 142740169 285480338