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230285880 = 233251158153
BaseRepresentation
bin11011011100111…
…10001000111000
3121001022201211200
431232132020320
5432423122010
634503454200
75464253256
oct1556361070
9531281750
10230285880
11108a99210
1265157360
133892c446
14228275d6
151533ccc0
hexdb9e238

230285880 has 96 divisors (see below), whose sum is σ = 816482160. Its totient is φ = 55825920.

The previous prime is 230285851. The next prime is 230285899. The reversal of 230285880 is 88582032.

230285880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25117 + ... + 33036.

Almost surely, 2230285880 is an apocalyptic number.

230285880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230285880 is an abundant number, since it is smaller than the sum of its proper divisors (586196280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230285880 is a wasteful number, since it uses less digits than its factorization.

230285880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58181 (or 58174 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 230285880 is about 15175.1731456349. The cubic root of 230285880 is about 612.9463124947.

The spelling of 230285880 in words is "two hundred thirty million, two hundred eighty-five thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 30 33 36 40 44 45 55 60 66 72 88 90 99 110 120 132 165 180 198 220 264 330 360 396 440 495 660 792 990 1320 1980 3960 58153 116306 174459 232612 290765 348918 465224 523377 581530 639683 697836 872295 1046754 1163060 1279366 1395672 1744590 1919049 2093508 2326120 2558732 2616885 3198415 3489180 3838098 4187016 5117464 5233770 5757147 6396830 6978360 7676196 9595245 10467540 11514294 12793660 15352392 19190490 20935080 23028588 25587320 28785735 38380980 46057176 57571470 76761960 115142940 230285880