Base | Representation |
---|---|
bin | 10111001110110010… |
… | …01100111110100111 |
3 | 1012012012102012221222 |
4 | 23213121030332213 |
5 | 201020323000442 |
6 | 5421331530555 |
7 | 621032626106 |
oct | 134731147647 |
9 | 35165365858 |
10 | 12472078247 |
11 | 5320187a92 |
12 | 2500a59a5b |
13 | 1239bc1875 |
14 | 8645c603d |
15 | 4cee208d2 |
hex | 2e764cfa7 |
12472078247 has 2 divisors, whose sum is σ = 12472078248. Its totient is φ = 12472078246.
The previous prime is 12472078133. The next prime is 12472078303. The reversal of 12472078247 is 74287027421.
It is a strong prime.
It is an emirp because it is prime and its reverse (74287027421) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12472078247 - 220 = 12471029671 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12472078198 and 12472078207.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12472078847) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6236039123 + 6236039124.
It is an arithmetic number, because the mean of its divisors is an integer number (6236039124).
Almost surely, 212472078247 is an apocalyptic number.
12472078247 is a deficient number, since it is larger than the sum of its proper divisors (1).
12472078247 is an equidigital number, since it uses as much as digits as its factorization.
12472078247 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 351232, while the sum is 44.
The spelling of 12472078247 in words is "twelve billion, four hundred seventy-two million, seventy-eight thousand, two hundred forty-seven".
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