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80378032741 = 174728119573
BaseRepresentation
bin100101011011011100…
…1110111001001100101
321200110200110010102121
41022312321313021211
52304103234021431
6100531500105541
75543562001606
oct1126671671145
9250420403377
1080378032741
11310a7338736
12136b25352b1
13776c554726
143c67061dad
152156793611
hex12b6e77265

80378032741 has 4 divisors (see below), whose sum is σ = 85106152332. Its totient is φ = 75649913152.

The previous prime is 80378032733. The next prime is 80378032751. The reversal of 80378032741 is 14723087308.

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 55812172516 + 24565860225 = 236246^2 + 156735^2 .

It is a cyclic number.

It is not a de Polignac number, because 80378032741 - 23 = 80378032733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80378032751) 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, 2364059770 + ... + 2364059803.

It is an arithmetic number, because the mean of its divisors is an integer number (21276538083).

Almost surely, 280378032741 is an apocalyptic number.

It is an amenable number.

80378032741 is a deficient number, since it is larger than the sum of its proper divisors (4728119591).

80378032741 is a wasteful number, since it uses less digits than its factorization.

80378032741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728119590.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 80378032741 in words is "eighty billion, three hundred seventy-eight million, thirty-two thousand, seven hundred forty-one".

Divisors: 1 17 4728119573 80378032741