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228930568 = 23171683313
BaseRepresentation
bin11011010010100…
…11010000001000
3120221202212200221
431221103100020
5432101234233
634414435424
75446610026
oct1551232010
9527685627
10228930568
11108252a19
1264802b74
1338576599
1422593716
151517142d
hexda53408

228930568 has 16 divisors (see below), whose sum is σ = 454494780. Its totient is φ = 107731968.

The previous prime is 228930557. The next prime is 228930571. The reversal of 228930568 is 865039822.

It can be written as a sum of positive squares in 2 ways, for example, as 221950404 + 6980164 = 14898^2 + 2642^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841521 + ... + 841792.

Almost surely, 2228930568 is an apocalyptic number.

It is an amenable number.

228930568 is a deficient number, since it is larger than the sum of its proper divisors (225564212).

228930568 is a wasteful number, since it uses less digits than its factorization.

228930568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683336 (or 1683332 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 228930568 is about 15130.4516786512. The cubic root of 228930568 is about 611.7414788040.

The spelling of 228930568 in words is "two hundred twenty-eight million, nine hundred thirty thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 17 34 68 136 1683313 3366626 6733252 13466504 28616321 57232642 114465284 228930568