Base | Representation |
---|---|
bin | 10000000001101111… |
… | …000011001110100011 |
3 | 1122102022201210002222 |
4 | 100001233003032203 |
5 | 240220444333022 |
6 | 11523344101255 |
7 | 1146311630324 |
oct | 200157031643 |
9 | 48368653088 |
10 | 17208980387 |
11 | 7331025745 |
12 | 340330482b |
13 | 18133a3141 |
14 | b9375c44b |
15 | 6aac07242 |
hex | 401bc33a3 |
17208980387 has 2 divisors, whose sum is σ = 17208980388. Its totient is φ = 17208980386.
The previous prime is 17208980381. The next prime is 17208980407. The reversal of 17208980387 is 78308980271.
It is a weak prime.
It is an emirp because it is prime and its reverse (78308980271) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 17208980387 - 26 = 17208980323 is a prime.
It is a super-3 number, since 3×172089803873 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not a weakly prime, because it can be changed into another prime (17208980381) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8604490193 + 8604490194.
It is an arithmetic number, because the mean of its divisors is an integer number (8604490194).
Almost surely, 217208980387 is an apocalyptic number.
17208980387 is a deficient number, since it is larger than the sum of its proper divisors (1).
17208980387 is an equidigital number, since it uses as much as digits as its factorization.
17208980387 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1354752, while the sum is 53.
The spelling of 17208980387 in words is "seventeen billion, two hundred eight million, nine hundred eighty thousand, three hundred eighty-seven".
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