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80505275755 = 556328598677
BaseRepresentation
bin100101011111001111…
…1010000010101101011
321200210112212202000211
41022332133100111223
52304333322311010
6100552243241551
75546665360522
oct1127637202553
9250715782024
1080505275755
1131162147253
12137290792b7
13778ca16358
143c79d054b9
152162a2a08a
hex12be7d056b

80505275755 has 8 divisors (see below), whose sum is σ = 96777926352. Its totient is φ = 64289823648.

The previous prime is 80505275707. The next prime is 80505275771. The reversal of 80505275755 is 55757250508.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80505275755 - 221 = 80503178603 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80505275699 and 80505275708.

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, 14296524 + ... + 14302153.

It is an arithmetic number, because the mean of its divisors is an integer number (12097240794).

Almost surely, 280505275755 is an apocalyptic number.

80505275755 is a deficient number, since it is larger than the sum of its proper divisors (16272650597).

80505275755 is a wasteful number, since it uses less digits than its factorization.

80505275755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28599245.

The product of its (nonzero) digits is 2450000, while the sum is 49.

The spelling of 80505275755 in words is "eighty billion, five hundred five million, two hundred seventy-five thousand, seven hundred fifty-five".

Divisors: 1 5 563 2815 28598677 142993385 16101055151 80505275755