Base | Representation |
---|---|
bin | 100101100101111111… |
… | …0000100100011001101 |
3 | 21201101022110222101102 |
4 | 1023023332010203031 |
5 | 2310314223121431 |
6 | 101030523152445 |
7 | 5555413032314 |
oct | 1131376044315 |
9 | 251338428342 |
10 | 80731457741 |
11 | 31268892110 |
12 | 13790975725 |
13 | 77c783984c |
14 | 3c9bd8127b |
15 | 2177806dcb |
hex | 12cbf848cd |
80731457741 has 8 divisors (see below), whose sum is σ = 88121875968. Its totient is φ = 73349572000.
The previous prime is 80731457713. The next prime is 80731457749. The reversal of 80731457741 is 14775413708.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-80731457741 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 (80731457749) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2113325 + ... + 2151186.
It is an arithmetic number, because the mean of its divisors is an integer number (11015234496).
Almost surely, 280731457741 is an apocalyptic number.
It is an amenable number.
80731457741 is a deficient number, since it is larger than the sum of its proper divisors (7390418227).
80731457741 is a wasteful number, since it uses less digits than its factorization.
80731457741 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4266243.
The product of its (nonzero) digits is 658560, while the sum is 47.
The spelling of 80731457741 in words is "eighty billion, seven hundred thirty-one million, four hundred fifty-seven thousand, seven hundred forty-one".
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