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228883338 = 23215498209
BaseRepresentation
bin11011010010001…
…11101110001010
3120221200110220200
431221013232022
5432043231323
634413433030
75446322235
oct1551075612
9527613820
10228883338
11108220492
126479b776
133855ac38
142258041c
1515162443
hexda47b8a

228883338 has 24 divisors (see below), whose sum is σ = 496294500. Its totient is φ = 76235904.

The previous prime is 228883289. The next prime is 228883349. The reversal of 228883338 is 833388822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 203148009 + 25735329 = 14253^2 + 5073^2 .

It is a junction number, because it is equal to n+sod(n) for n = 228883293 and 228883302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23778 + ... + 31986.

Almost surely, 2228883338 is an apocalyptic number.

228883338 is an abundant number, since it is smaller than the sum of its proper divisors (267411162).

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

228883338 is a wasteful number, since it uses less digits than its factorization.

228883338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9766 (or 9763 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 228883338 is about 15128.8908383926. The cubic root of 228883338 is about 611.6994070419.

The spelling of 228883338 in words is "two hundred twenty-eight million, eight hundred eighty-three thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 9 18 1549 3098 4647 8209 9294 13941 16418 24627 27882 49254 73881 147762 12715741 25431482 38147223 76294446 114441669 228883338