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30443531386866 = 23132049131904719
BaseRepresentation
bin1101110110000001011111…
…10111111011111111110010
310222210101002001020201001120
412323000233313323333302
512442241323013334431
6144425322032043110
76261321042103443
oct673005767737762
9128711061221046
1030443531386866
119778035896734
1234b81b1093496
1313caa74638770
14773690b292ca
1537bd8d216196
hex1bb02fdfbff2

30443531386866 has 32 divisors (see below), whose sum is σ = 65571037405440. Its totient is φ = 9367189795584.

The previous prime is 30443531386847. The next prime is 30443531386901. The reversal of 30443531386866 is 66868313534403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15030855 + ... + 16935573.

It is an arithmetic number, because the mean of its divisors is an integer number (2049094918920).

Almost surely, 230443531386866 is an apocalyptic number.

30443531386866 is an abundant number, since it is smaller than the sum of its proper divisors (35127506018574).

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

30443531386866 is a wasteful number, since it uses less digits than its factorization.

30443531386866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109650.

The product of its (nonzero) digits is 89579520, while the sum is 60.

The spelling of 30443531386866 in words is "thirty trillion, four hundred forty-three billion, five hundred thirty-one million, three hundred eighty-six thousand, eight hundred sixty-six".

Divisors: 1 2 3 6 13 26 39 78 204913 409826 614739 1229478 1904719 2663869 3809438 5327738 5714157 7991607 11428314 15983214 24761347 49522694 74284041 148568082 390301684447 780603368894 1170905053341 2341810106682 5073921897811 10147843795622 15221765693433 30443531386866