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228124644 = 223116172801
BaseRepresentation
bin11011001100011…
…10011111100100
3120220020221011220
431212032133210
5431344442034
634345300340
75440012266
oct1546163744
9526227156
10228124644
11107852470
12644946b0
13383537c7
1422423b36
1515062749
hexd98e7e4

228124644 has 48 divisors (see below), whose sum is σ = 581829696. Its totient is φ = 68992000.

The previous prime is 228124607. The next prime is 228124679. The reversal of 228124644 is 446421822.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80044 + ... + 82844.

It is an arithmetic number, because the mean of its divisors is an integer number (12121452).

Almost surely, 2228124644 is an apocalyptic number.

It is an amenable number.

228124644 is an abundant number, since it is smaller than the sum of its proper divisors (353705052).

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

228124644 is a wasteful number, since it uses less digits than its factorization.

228124644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436 (or 3434 counting only the distinct ones).

The product of its digits is 24576, while the sum is 33.

The square root of 228124644 is about 15103.7956818808. The cubic root of 228124644 is about 611.0227793676.

The spelling of 228124644 in words is "two hundred twenty-eight million, one hundred twenty-four thousand, six hundred forty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 617 1234 1851 2468 2801 3702 5602 6787 7404 8403 11204 13574 16806 20361 27148 30811 33612 40722 61622 81444 92433 123244 184866 369732 1728217 3456434 5184651 6912868 10369302 19010387 20738604 38020774 57031161 76041548 114062322 228124644