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80491460368 = 2411457337843
BaseRepresentation
bin100101011110110101…
…0100011011100010000
321200202120212211212211
41022331222203130100
52304321303212433
6100551031201504
75546440060444
oct1127552433420
9250676784784
1080491460368
1131155370580
1213724516294
137789bb9c77
143c7814a824
1521616eb8cd
hex12bdaa3710

80491460368 has 20 divisors (see below), whose sum is σ = 170129677968. Its totient is φ = 36587027360.

The previous prime is 80491460339. The next prime is 80491460459. The reversal of 80491460368 is 86306419408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228668746 + ... + 228669097.

Almost surely, 280491460368 is an apocalyptic number.

80491460368 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

80491460368 is an abundant number, since it is smaller than the sum of its proper divisors (89638217600).

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

80491460368 is a wasteful number, since it uses less digits than its factorization.

80491460368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457337862 (or 457337856 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 80491460368 in words is "eighty billion, four hundred ninety-one million, four hundred sixty thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 11 16 22 44 88 176 457337843 914675686 1829351372 3658702744 5030716273 7317405488 10061432546 20122865092 40245730184 80491460368