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18328656284 = 22172149106411
BaseRepresentation
bin10001000100011110…
…010001100110011100
31202022100121012200122
4101010132101212130
5300014114000114
612230422414112
71216126002461
oct210436214634
952270535618
1018328656284
117856059824
123676291338
131961352863
14c5c33d668
15724177e8e
hex44479199c

18328656284 has 36 divisors (see below), whose sum is σ = 34301908200. Its totient is φ = 8567281920.

The previous prime is 18328656239. The next prime is 18328656329. The reversal of 18328656284 is 48265682381.

It is an interprime number because it is at equal distance from previous prime (18328656239) and next prime (18328656329).

It is a congruent number.

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, 119039 + ... + 225449.

Almost surely, 218328656284 is an apocalyptic number.

It is an amenable number.

18328656284 is a deficient number, since it is larger than the sum of its proper divisors (15973251916).

18328656284 is a wasteful number, since it uses less digits than its factorization.

18328656284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106598 (or 106579 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 53.

The spelling of 18328656284 in words is "eighteen billion, three hundred twenty-eight million, six hundred fifty-six thousand, two hundred eighty-four".

Divisors: 1 2 4 17 34 68 149 289 298 578 596 1156 2533 5066 10132 43061 86122 106411 172244 212822 425644 1808987 3617974 7235948 15855239 30752779 31710478 61505558 63420956 123011116 269539063 539078126 1078156252 4582164071 9164328142 18328656284