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80168550590 = 25311186713807
BaseRepresentation
bin100101010101001101…
…0110000000010111110
321122221002021022221102
41022222122300002332
52303141122104330
6100455014133102
75535436302512
oct1125232600276
9248832238842
1080168550590
1130aaa069697
1213654351192
13773802a4ab
143c472d2142
1521431b4945
hex12aa6b00be

80168550590 has 32 divisors (see below), whose sum is σ = 144855419904. Its totient is φ = 31944875040.

The previous prime is 80168550523. The next prime is 80168550593. The reversal of 80168550590 is 9505586108.

80168550590 is nontrivially palindromic in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80168550593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5799467 + ... + 5813273.

It is an arithmetic number, because the mean of its divisors is an integer number (4526731872).

Almost surely, 280168550590 is an apocalyptic number.

80168550590 is a deficient number, since it is larger than the sum of its proper divisors (64686869314).

80168550590 is a wasteful number, since it uses less digits than its factorization.

80168550590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15992.

The product of its (nonzero) digits is 432000, while the sum is 47.

The spelling of 80168550590 in words is "eighty billion, one hundred sixty-eight million, five hundred fifty thousand, five hundred ninety".

Divisors: 1 2 5 10 311 622 1555 1867 3110 3734 9335 13807 18670 27614 69035 138070 580637 1161274 2903185 4293977 5806370 8587954 21469885 25777669 42939770 51555338 128888345 257776690 8016855059 16033710118 40084275295 80168550590