Base | Representation |
---|---|
bin | 11000001100010101… |
… | …00011010111010111 |
3 | 1020112011211121021001 |
4 | 30012022203113113 |
5 | 203100003101404 |
6 | 5544453004131 |
7 | 636601665424 |
oct | 140612432727 |
9 | 36464747231 |
10 | 12988331479 |
11 | 5565635752 |
12 | 2625923647 |
13 | 12bcb47856 |
14 | 8b2dacd4b |
15 | 5103e97a4 |
hex | 3062a35d7 |
12988331479 has 2 divisors, whose sum is σ = 12988331480. Its totient is φ = 12988331478.
The previous prime is 12988331459. The next prime is 12988331507. The reversal of 12988331479 is 97413388921.
It is a happy number.
12988331479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is an emirp because it is prime and its reverse (97413388921) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12988331479 - 225 = 12954777047 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12988331459) 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, 6494165739 + 6494165740.
It is an arithmetic number, because the mean of its divisors is an integer number (6494165740).
Almost surely, 212988331479 is an apocalyptic number.
12988331479 is a deficient number, since it is larger than the sum of its proper divisors (1).
12988331479 is an equidigital number, since it uses as much as digits as its factorization.
12988331479 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2612736, while the sum is 55.
The spelling of 12988331479 in words is "twelve billion, nine hundred eighty-eight million, three hundred thirty-one thousand, four hundred seventy-nine".
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