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228140352 = 26321136007
BaseRepresentation
bin11011001100100…
…10010101000000
3120220021201201200
431212102111000
5431400442402
634345501200
75440106136
oct1546222500
9526251650
10228140352
11107863250
12644a1800
133835a9bb
1422429756
151506721c
hexd992540

228140352 has 84 divisors (see below), whose sum is σ = 713390496. Its totient is φ = 69131520.

The previous prime is 228140351. The next prime is 228140389. The reversal of 228140352 is 253041822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228140351) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 11668 + ... + 24339.

It is an arithmetic number, because the mean of its divisors is an integer number (8492744).

Almost surely, 2228140352 is an apocalyptic number.

228140352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

228140352 is an abundant number, since it is smaller than the sum of its proper divisors (485250144).

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

228140352 is a wasteful number, since it uses less digits than its factorization.

228140352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36036 (or 36023 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 228140352 is about 15104.3156746673. The cubic root of 228140352 is about 611.0368034633.

The spelling of 228140352 in words is "two hundred twenty-eight million, one hundred forty thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 64 66 72 88 96 99 132 144 176 192 198 264 288 352 396 528 576 704 792 1056 1584 2112 3168 6336 36007 72014 108021 144028 216042 288056 324063 396077 432084 576112 648126 792154 864168 1152224 1188231 1296252 1584308 1728336 2304448 2376462 2592504 3168616 3456672 3564693 4752924 5185008 6337232 6913344 7129386 9505848 10370016 12674464 14258772 19011696 20740032 25348928 28517544 38023392 57035088 76046784 114070176 228140352