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80385725884 = 22149167807637
BaseRepresentation
bin100101011011101011…
…1001101010110111100
321200111012220222102211
41022313113031112330
52304112221212014
6100532333030204
75544014252602
oct1126727152674
9250435828384
1080385725884
1131100712702
12136b5025364
137771019299
143c680a5872
1521572b2cc4
hex12b75cd5bc

80385725884 has 24 divisors (see below), whose sum is σ = 142467343200. Its totient is φ = 39684002496.

The previous prime is 80385725879. The next prime is 80385725891. The reversal of 80385725884 is 48852758308.

It is a congruent number.

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, 304287 + ... + 503350.

It is an arithmetic number, because the mean of its divisors is an integer number (5936139300).

Almost surely, 280385725884 is an apocalyptic number.

It is an amenable number.

80385725884 is a deficient number, since it is larger than the sum of its proper divisors (62081617316).

80385725884 is a wasteful number, since it uses less digits than its factorization.

80385725884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807957 (or 807955 counting only the distinct ones).

The product of its (nonzero) digits is 17203200, while the sum is 58.

The spelling of 80385725884 in words is "eighty billion, three hundred eighty-five million, seven hundred twenty-five thousand, eight hundred eighty-four".

Divisors: 1 2 4 149 167 298 334 596 668 24883 49766 99532 807637 1615274 3230548 120337913 134875379 240675826 269750758 481351652 539501516 20096431471 40192862942 80385725884