Base | Representation |
---|---|
bin | 100101011110010000… |
… | …1010110000001001111 |
3 | 21200201020202211002221 |
4 | 1022330201112001033 |
5 | 2304301400101004 |
6 | 100545104000211 |
7 | 5546114666542 |
oct | 1127441260117 |
9 | 250636684087 |
10 | 80472268879 |
11 | 31145552742 |
12 | 1371a000067 |
13 | 7785c2a862 |
14 | 3c75792859 |
15 | 215ebaa354 |
hex | 12bc85604f |
80472268879 has 2 divisors, whose sum is σ = 80472268880. Its totient is φ = 80472268878.
The previous prime is 80472268769. The next prime is 80472268889. The reversal of 80472268879 is 97886227408.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-80472268879 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80472268889) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40236134439 + 40236134440.
It is an arithmetic number, because the mean of its divisors is an integer number (40236134440).
Almost surely, 280472268879 is an apocalyptic number.
80472268879 is a deficient number, since it is larger than the sum of its proper divisors (1).
80472268879 is an equidigital number, since it uses as much as digits as its factorization.
80472268879 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 21676032, while the sum is 61.
The spelling of 80472268879 in words is "eighty billion, four hundred seventy-two million, two hundred sixty-eight thousand, eight hundred seventy-nine".
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