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285233164 = 22109765003
BaseRepresentation
bin10001000000000…
…101000000001100
3201212201100100021
4101000011000030
51041004430124
644145311524
710032304366
oct2100050014
9655640307
10285233164
11137008997
127b6355a4
134712a628
1429c4bd36
151a0937e4
hex1100500c

285233164 has 12 divisors (see below), whose sum is σ = 499620744. Its totient is φ = 142484384.

The previous prime is 285233129. The next prime is 285233167. The reversal of 285233164 is 461332582.

It is not an unprimeable number, because it can be changed into a prime (285233167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28114 + ... + 36889.

It is an arithmetic number, because the mean of its divisors is an integer number (41635062).

Almost surely, 2285233164 is an apocalyptic number.

It is an amenable number.

285233164 is a deficient number, since it is larger than the sum of its proper divisors (214387580).

285233164 is a wasteful number, since it uses less digits than its factorization.

285233164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66104 (or 66102 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 285233164 is about 16888.8473259722. The cubic root of 285233164 is about 658.2638514646.

The spelling of 285233164 in words is "two hundred eighty-five million, two hundred thirty-three thousand, one hundred sixty-four".

Divisors: 1 2 4 1097 2194 4388 65003 130006 260012 71308291 142616582 285233164