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80411799985 = 5114333376519
BaseRepresentation
bin100101011100011101…
…0101011000110110001
321200120000222200101021
41022320322223012301
52304140410044420
6100535103535441
75544452010436
oct1127072530661
9250500880337
1080411799985
1131114401550
12137018ba581
13777654834a
143c6b731b8d
1521597137aa
hex12b8eab1b1

80411799985 has 16 divisors (see below), whose sum is σ = 105509496960. Its totient is φ = 58346231040.

The previous prime is 80411799971. The next prime is 80411799997. The reversal of 80411799985 is 58999711408.

It is not a de Polignac number, because 80411799985 - 27 = 80411799857 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1664445 + ... + 1712074.

It is an arithmetic number, because the mean of its divisors is an integer number (6594343560).

Almost surely, 280411799985 is an apocalyptic number.

It is an amenable number.

80411799985 is a deficient number, since it is larger than the sum of its proper divisors (25097696975).

80411799985 is a wasteful number, since it uses less digits than its factorization.

80411799985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376968.

The product of its (nonzero) digits is 6531840, while the sum is 61.

The spelling of 80411799985 in words is "eighty billion, four hundred eleven million, seven hundred ninety-nine thousand, nine hundred eighty-five".

Divisors: 1 5 11 55 433 2165 4763 23815 3376519 16882595 37141709 185708545 1462032727 7310163635 16082359997 80411799985