Base | Representation |
---|---|
bin | 111111001111101000… |
… | …101100100100011111 |
3 | 20111021121222221200211 |
4 | 333033220230210133 |
5 | 2103033430431341 |
6 | 51110241233251 |
7 | 4622552666335 |
oct | 771750544437 |
9 | 214247887624 |
10 | 67908061471 |
11 | 2688836a758 |
12 | 111b2332827 |
13 | 6532c1cbc3 |
14 | 3402c67b55 |
15 | 1b76b3c181 |
hex | fcfa2c91f |
67908061471 has 2 divisors, whose sum is σ = 67908061472. Its totient is φ = 67908061470.
The previous prime is 67908061469. The next prime is 67908061477. The reversal of 67908061471 is 17416080976.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 67908061471 - 21 = 67908061469 is a prime.
It is a super-3 number, since 3×679080614713 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
Together with 67908061469, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (67908061477) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33954030735 + 33954030736.
It is an arithmetic number, because the mean of its divisors is an integer number (33954030736).
Almost surely, 267908061471 is an apocalyptic number.
67908061471 is a deficient number, since it is larger than the sum of its proper divisors (1).
67908061471 is an equidigital number, since it uses as much as digits as its factorization.
67908061471 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 508032, while the sum is 49.
The spelling of 67908061471 in words is "sixty-seven billion, nine hundred eight million, sixty-one thousand, four hundred seventy-one".
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