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83330228 = 22179181643
BaseRepresentation
bin1001111011110…
…00010010110100
312210210121120202
410331320102310
5132313031403
612134020032
72031203162
oct475702264
9183717522
1083330228
1143046263
1223aa7618
1314358137
14b0d2232
1574b0688
hex4f784b4

83330228 has 24 divisors (see below), whose sum is σ = 147682080. Its totient is φ = 41139360.

The previous prime is 83330213. The next prime is 83330231. The reversal of 83330228 is 82203338.

It is a self number, because there is not a number n which added to its sum of digits gives 83330228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129275 + ... + 129917.

It is an arithmetic number, because the mean of its divisors is an integer number (6153420).

Almost surely, 283330228 is an apocalyptic number.

It is an amenable number.

83330228 is a deficient number, since it is larger than the sum of its proper divisors (64351852).

83330228 is a wasteful number, since it uses less digits than its factorization.

83330228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 83330228 is about 9128.5392040567. The cubic root of 83330228 is about 436.7848067837.

The spelling of 83330228 in words is "eighty-three million, three hundred thirty thousand, two hundred twenty-eight".

Divisors: 1 2 4 179 181 358 362 643 716 724 1286 2572 32399 64798 115097 116383 129596 230194 232766 460388 465532 20832557 41665114 83330228