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285606434 = 21032395801
BaseRepresentation
bin10001000001100…
…000001000100010
3201220102022101002
4101001200020202
51041103401214
644201312002
710035420551
oct2101401042
9656368332
10285606434
11137243383
127b795602
134722b4b9
1429d07d98
151a1191de
hex11060222

285606434 has 16 divisors (see below), whose sum is σ = 434453760. Its totient is φ = 140800800.

The previous prime is 285606427. The next prime is 285606439. The reversal of 285606434 is 434606582.

It is not an unprimeable number, because it can be changed into a prime (285606439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46334 + ... + 52134.

It is an arithmetic number, because the mean of its divisors is an integer number (27153360).

Almost surely, 2285606434 is an apocalyptic number.

285606434 is a deficient number, since it is larger than the sum of its proper divisors (148847326).

285606434 is a wasteful number, since it uses less digits than its factorization.

285606434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6145.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 285606434 is about 16899.8944967121. The cubic root of 285606434 is about 658.5508716688.

The spelling of 285606434 in words is "two hundred eighty-five million, six hundred six thousand, four hundred thirty-four".

Divisors: 1 2 103 206 239 478 5801 11602 24617 49234 597503 1195006 1386439 2772878 142803217 285606434