Base | Representation |
---|---|
bin | 11100000001000000011110… |
… | …111101110000111010110001 |
3 | 121011021012021020100022222212 |
4 | 130001000132331300322301 |
5 | 112122221340032422111 |
6 | 1114015551232541505 |
7 | 34644646124312162 |
oct | 3401003675607261 |
9 | 534235236308885 |
10 | 123214541295281 |
11 | 36294aa2401497 |
12 | 1199b9786b1895 |
13 | 539a109a6ac77 |
14 | 225d889385769 |
15 | e3a15dc2598b |
hex | 70101ef70eb1 |
123214541295281 has 2 divisors, whose sum is σ = 123214541295282. Its totient is φ = 123214541295280.
The previous prime is 123214541295277. The next prime is 123214541295317. The reversal of 123214541295281 is 182592145412321.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 103960128935056 + 19254412360225 = 10196084^2 + 4387985^2 .
It is an emirp because it is prime and its reverse (182592145412321) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 123214541295281 - 22 = 123214541295277 is a prime.
It is a super-2 number, since 2×1232145412952812 (a number of 29 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (123214541295481) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61607270647640 + 61607270647641.
It is an arithmetic number, because the mean of its divisors is an integer number (61607270647641).
Almost surely, 2123214541295281 is an apocalyptic number.
It is an amenable number.
123214541295281 is a deficient number, since it is larger than the sum of its proper divisors (1).
123214541295281 is an equidigital number, since it uses as much as digits as its factorization.
123214541295281 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1382400, while the sum is 50.
The spelling of 123214541295281 in words is "one hundred twenty-three trillion, two hundred fourteen billion, five hundred forty-one million, two hundred ninety-five thousand, two hundred eighty-one".
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