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80468063818 = 282149006129
BaseRepresentation
bin100101011110001000…
…1010011011001001010
321200200221212011211221
41022330101103121022
52304244311020233
6100544433512254
75546034154102
oct1127421233112
9250627764757
1080468063818
113114314038a
121371871268a
1377850b785c
143c74dba202
15215e62942d
hex12bc45364a

80468063818 has 8 divisors (see below), whose sum is σ = 120849116580. Its totient is φ = 40185024960.

The previous prime is 80468063779. The next prime is 80468063831. The reversal of 80468063818 is 81836086408.

It can be written as a sum of positive squares in 2 ways, for example, as 79505389089 + 962674729 = 281967^2 + 31027^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 24501423 + ... + 24504706.

Almost surely, 280468063818 is an apocalyptic number.

80468063818 is a deficient number, since it is larger than the sum of its proper divisors (40381052762).

80468063818 is a wasteful number, since it uses less digits than its factorization.

80468063818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49006952.

The product of its (nonzero) digits is 1769472, while the sum is 52.

The spelling of 80468063818 in words is "eighty billion, four hundred sixty-eight million, sixty-three thousand, eight hundred eighteen".

Divisors: 1 2 821 1642 49006129 98012258 40234031909 80468063818