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80264649465 = 335711131943727
BaseRepresentation
bin100101011000000100…
…1010101101011111001
321200011210002122211000
41022300021111223321
52303340222240330
6100512325555213
75541014156250
oct1126011255371
9250153078730
1080264649465
1131049336150
1213680575b09
137751c06430
143c55d89797
15214b848560
hex12b0255af9

80264649465 has 512 divisors, whose sum is σ = 206644838400. Its totient is φ = 28452695040.

The previous prime is 80264649431. The next prime is 80264649469. The reversal of 80264649465 is 56494646208.

80264649465 is a `hidden beast` number, since 80 + 2 + 64 + 6 + 49 + 465 = 666.

It is not a de Polignac number, because 80264649465 - 214 = 80264633081 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80264649469) by changing a digit.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 110404932 + ... + 110405658.

It is an arithmetic number, because the mean of its divisors is an integer number (403603200).

Almost surely, 280264649465 is an apocalyptic number.

It is an amenable number.

80264649465 is an abundant number, since it is smaller than the sum of its proper divisors (126380188935).

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

80264649465 is a wasteful number, since it uses less digits than its factorization.

80264649465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 80264649465 in words is "eighty billion, two hundred sixty-four million, six hundred forty-nine thousand, four hundred sixty-five".