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28016844711426 = 234397435625909
BaseRepresentation
bin1100101111011001011100…
…00100111010011000000010
310200012101101002010220120000
412113230232010322120002
512133011444221231201
6135330432154500430
75621102346515034
oct627545604723002
9120171332126500
1028016844711426
118a2197149528a
123185a28734716
131282c9196a15c
146cc045b15c54
15338bb0a4bd86
hex197b2e13a602

28016844711426 has 40 divisors (see below), whose sum is σ = 62936617721340. Its totient is φ = 9315424416672.

The previous prime is 28016844711403. The next prime is 28016844711437. The reversal of 28016844711426 is 62411744861082.

28016844711426 is a `hidden beast` number, since 2 + 8 + 0 + 1 + 68 + 447 + 114 + 26 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24070062515625 + 3946782195801 = 4906125^2 + 1986651^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 217748641 + ... + 217877268.

Almost surely, 228016844711426 is an apocalyptic number.

28016844711426 is an abundant number, since it is smaller than the sum of its proper divisors (34919773009914).

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

28016844711426 is a wasteful number, since it uses less digits than its factorization.

28016844711426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435626320 (or 435626311 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 28016844711426 in words is "twenty-eight trillion, sixteen billion, eight hundred forty-four million, seven hundred eleven thousand, four hundred twenty-six".

Divisors: 1 2 3 6 9 18 27 54 81 162 397 794 1191 2382 3573 7146 10719 21438 32157 64314 435625909 871251818 1306877727 2613755454 3920633181 7841266362 11761899543 23523799086 35285698629 70571397258 172943485873 345886971746 518830457619 1037660915238 1556491372857 3112982745714 4669474118571 9338948237142 14008422355713 28016844711426