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80790103697 = 174752359041
BaseRepresentation
bin100101100111101110…
…1110010011010010001
321201112101211111111212
41023033131302122101
52310424231304242
6101040420145505
75560024356632
oct1131735623221
9251471744455
1080790103697
11312989a8746
12137a8538295
137806a313b4
143ca5a89889
15217ca3d782
hex12cf772691

80790103697 has 4 divisors (see below), whose sum is σ = 85542462756. Its totient is φ = 76037744640.

The previous prime is 80790103679. The next prime is 80790103733. The reversal of 80790103697 is 79630109708.

It is a Cunningham number, because it is equal to 2842362+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62898633616 + 17891470081 = 250796^2 + 133759^2 .

It is a cyclic number.

It is not a de Polignac number, because 80790103697 - 26 = 80790103633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80790103397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2376179504 + ... + 2376179537.

It is an arithmetic number, because the mean of its divisors is an integer number (21385615689).

Almost surely, 280790103697 is an apocalyptic number.

It is an amenable number.

80790103697 is a deficient number, since it is larger than the sum of its proper divisors (4752359059).

80790103697 is a wasteful number, since it uses less digits than its factorization.

80790103697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752359058.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 80790103697 in words is "eighty billion, seven hundred ninety million, one hundred three thousand, six hundred ninety-seven".

Divisors: 1 17 4752359041 80790103697