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80534387090 = 258537943357
BaseRepresentation
bin100101100000000111…
…0010011100110010010
321200212120122202021102
41023000032103212102
52304413300341330
6100555203224402
75550500665313
oct1130016234622
9250776582242
1080534387090
1131177620003
1213736978102
137795a699b1
143c7db2260a
15216537a945
hex12c0393992

80534387090 has 16 divisors (see below), whose sum is σ = 144979030872. Its totient is φ = 32209947264.

The previous prime is 80534387029. The next prime is 80534387123. The reversal of 80534387090 is 9078343508.

It can be written as a sum of positive squares in 4 ways, for example, as 80381889289 + 152497801 = 283517^2 + 12349^2 .

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, 386309 + ... + 557048.

Almost surely, 280534387090 is an apocalyptic number.

80534387090 is a deficient number, since it is larger than the sum of its proper divisors (64444643782).

80534387090 is a wasteful number, since it uses less digits than its factorization.

80534387090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951901.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 80534387090 in words is "eighty billion, five hundred thirty-four million, three hundred eighty-seven thousand, ninety".

Divisors: 1 2 5 10 8537 17074 42685 85370 943357 1886714 4716785 9433570 8053438709 16106877418 40267193545 80534387090