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80840310145 = 574273540539
BaseRepresentation
bin100101101001001110…
…1010011110110000001
321201122220022020210221
41023102131103312001
52311030104411040
6101045412223041
75561204204260
oct1132235236601
9251586266727
1080840310145
113131427a581
121380130aa81
13781425c75a
143cac5d85d7
15218215974a
hex12d2753d81

80840310145 has 16 divisors (see below), whose sum is σ = 110892862080. Its totient is φ = 55420280064.

The previous prime is 80840310113. The next prime is 80840310151. The reversal of 80840310145 is 54101304808.

It is a cyclic number.

It is not a de Polignac number, because 80840310145 - 25 = 80840310113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80840310145.

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, 120715 + ... + 419824.

It is an arithmetic number, because the mean of its divisors is an integer number (6930803880).

Almost surely, 280840310145 is an apocalyptic number.

It is an amenable number.

80840310145 is a deficient number, since it is larger than the sum of its proper divisors (30052551935).

80840310145 is a wasteful number, since it uses less digits than its factorization.

80840310145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544824.

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 80840310145 in words is "eighty billion, eight hundred forty million, three hundred ten thousand, one hundred forty-five".

Divisors: 1 5 7 35 4273 21365 29911 149555 540539 2702695 3783773 18918865 2309723147 11548615735 16168062029 80840310145