Base | Representation |
---|---|
bin | 10110110100001010… |
… | …11111001111110011 |
3 | 1011121122021211112211 |
4 | 23122011133033303 |
5 | 200041143301022 |
6 | 5343234232551 |
7 | 612352064536 |
oct | 133205371763 |
9 | 34548254484 |
10 | 12248806387 |
11 | 521614a594 |
12 | 245a125757 |
13 | 1202879b3c |
14 | 842aa6a1d |
15 | 4ba51ae77 |
hex | 2da15f3f3 |
12248806387 has 2 divisors, whose sum is σ = 12248806388. Its totient is φ = 12248806386.
The previous prime is 12248806343. The next prime is 12248806393. The reversal of 12248806387 is 78360884221.
It is a strong prime.
It is an emirp because it is prime and its reverse (78360884221) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12248806387 - 27 = 12248806259 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12248806387.
It is not a weakly prime, because it can be changed into another prime (12248806327) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6124403193 + 6124403194.
It is an arithmetic number, because the mean of its divisors is an integer number (6124403194).
Almost surely, 212248806387 is an apocalyptic number.
12248806387 is a deficient number, since it is larger than the sum of its proper divisors (1).
12248806387 is an equidigital number, since it uses as much as digits as its factorization.
12248806387 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1032192, while the sum is 49.
The spelling of 12248806387 in words is "twelve billion, two hundred forty-eight million, eight hundred six thousand, three hundred eighty-seven".
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