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80345368955 = 5135531185647
BaseRepresentation
bin100101011010011110…
…1010000100101111011
321200101101222122010202
41022310331100211323
52304021403301310
6100524332032415
75543014240115
oct1126475204573
9250341878122
1080345368955
113108a958975
12136a360270b
137765859147
143c6299c3b5
1521539903a5
hex12b4f5097b

80345368955 has 8 divisors (see below), whose sum is σ = 96421637952. Its totient is φ = 64271498368.

The previous prime is 80345368949. The next prime is 80345368969. The reversal of 80345368955 is 55986354308.

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 80345368955 - 218 = 80345106811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80345368955.

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, 525059 + ... + 660588.

It is an arithmetic number, because the mean of its divisors is an integer number (12052704744).

Almost surely, 280345368955 is an apocalyptic number.

80345368955 is a deficient number, since it is larger than the sum of its proper divisors (16076268997).

80345368955 is a wasteful number, since it uses less digits than its factorization.

80345368955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199205.

The product of its (nonzero) digits is 15552000, while the sum is 56.

The spelling of 80345368955 in words is "eighty billion, three hundred forty-five million, three hundred sixty-eight thousand, nine hundred fifty-five".

Divisors: 1 5 13553 67765 1185647 5928235 16069073791 80345368955