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80345368895 = 5116123947949
BaseRepresentation
bin100101011010011110…
…1010000100100111111
321200101101222122001112
41022310331100210333
52304021403301040
6100524332032235
75543014240001
oct1126475204477
9250341878045
1080345368895
113108a958920
12136a360267b
1377658590cc
143c6299c371
152153990365
hex12b4f5093f

80345368895 has 16 divisors (see below), whose sum is σ = 106903648800. Its totient is φ = 57475075200.

The previous prime is 80345368879. The next prime is 80345368931. The reversal of 80345368895 is 59886354308.

It is not a de Polignac number, because 80345368895 - 24 = 80345368879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11970620 + ... + 11977329.

It is an arithmetic number, because the mean of its divisors is an integer number (6681478050).

Almost surely, 280345368895 is an apocalyptic number.

80345368895 is a deficient number, since it is larger than the sum of its proper divisors (26558279905).

80345368895 is a wasteful number, since it uses less digits than its factorization.

80345368895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23948026.

The product of its (nonzero) digits is 24883200, while the sum is 59.

The spelling of 80345368895 in words is "eighty billion, three hundred forty-five million, three hundred sixty-eight thousand, eight hundred ninety-five".

Divisors: 1 5 11 55 61 305 671 3355 23947949 119739745 263427439 1317137195 1460824889 7304124445 16069073779 80345368895