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228075630 = 2357602521
BaseRepresentation
bin11011001100000…
…10100001101110
3120220011102221120
431212002201232
5431341410010
634344241410
75436416346
oct1546024156
9526142846
10228075630
11107819662
1264470266
13383373c3
142240dd26
1515052e70
hexd98286e

228075630 has 16 divisors (see below), whose sum is σ = 547381584. Its totient is φ = 60820160.

The previous prime is 228075629. The next prime is 228075709. The reversal of 228075630 is 36570822.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 228075591 and 228075600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3801231 + ... + 3801290.

It is an arithmetic number, because the mean of its divisors is an integer number (34211349).

Almost surely, 2228075630 is an apocalyptic number.

228075630 is an abundant number, since it is smaller than the sum of its proper divisors (319305954).

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

228075630 is a wasteful number, since it uses less digits than its factorization.

228075630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7602531.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 228075630 is about 15102.1730224495. The cubic root of 228075630 is about 610.9790155504.

The spelling of 228075630 in words is "two hundred twenty-eight million, seventy-five thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 7602521 15205042 22807563 38012605 45615126 76025210 114037815 228075630