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285421054 = 2154392489
BaseRepresentation
bin10001000000110…
…010110111111110
3201220001220002011
4101000302313332
51041031433204
644153321434
710034016232
oct2100626776
9656056064
10285421054
11137127076
127b70627a
1347194cc9
1429c9a5c2
151a0ce304
hex11032dfe

285421054 has 8 divisors (see below), whose sum is σ = 428413680. Its totient is φ = 142616496.

The previous prime is 285421027. The next prime is 285421069. The reversal of 285421054 is 450124582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43159 + ... + 49330.

It is an arithmetic number, because the mean of its divisors is an integer number (53551710).

Almost surely, 2285421054 is an apocalyptic number.

285421054 is a deficient number, since it is larger than the sum of its proper divisors (142992626).

285421054 is a wasteful number, since it uses less digits than its factorization.

285421054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94034.

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 285421054 is about 16894.4089568117. The cubic root of 285421054 is about 658.4083578583.

The spelling of 285421054 in words is "two hundred eighty-five million, four hundred twenty-one thousand, fifty-four".

Divisors: 1 2 1543 3086 92489 184978 142710527 285421054