Base | Representation |
---|---|
bin | 10110111111010001… |
… | …11100100000111011 |
3 | 1011212010121220211222 |
4 | 23133220330200323 |
5 | 200234022044022 |
6 | 5400403342255 |
7 | 614563106342 |
oct | 133750744073 |
9 | 34763556758 |
10 | 12341987387 |
11 | 5263803884 |
12 | 248538198b |
13 | 1218c73922 |
14 | 851200b59 |
15 | 4c37c5242 |
hex | 2dfa3c83b |
12341987387 has 2 divisors, whose sum is σ = 12341987388. Its totient is φ = 12341987386.
The previous prime is 12341987327. The next prime is 12341987407. The reversal of 12341987387 is 78378914321.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12341987387 is a prime.
It is not a weakly prime, because it can be changed into another prime (12341987327) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6170993693 + 6170993694.
It is an arithmetic number, because the mean of its divisors is an integer number (6170993694).
Almost surely, 212341987387 is an apocalyptic number.
12341987387 is a deficient number, since it is larger than the sum of its proper divisors (1).
12341987387 is an equidigital number, since it uses as much as digits as its factorization.
12341987387 is an evil number, because the sum of its binary digits is even.
The product of its digits is 2032128, while the sum is 53.
The spelling of 12341987387 in words is "twelve billion, three hundred forty-one million, nine hundred eighty-seven thousand, three hundred eighty-seven".
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