Base | Representation |
---|---|
bin | 1010011001111… |
… | …01011010010101 |
3 | 20002020110020122 |
4 | 11030331122111 |
5 | 134321031344 |
6 | 12354441325 |
7 | 2106616256 |
oct | 514753225 |
9 | 202213218 |
10 | 87283349 |
11 | 452a62aa |
12 | 25293245 |
13 | 1511056a |
14 | b840b2d |
15 | 79e1aee |
hex | 533d695 |
87283349 has 2 divisors, whose sum is σ = 87283350. Its totient is φ = 87283348.
The previous prime is 87283327. The next prime is 87283351. The reversal of 87283349 is 94338278.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 63712324 + 23571025 = 7982^2 + 4855^2 .
It is a cyclic number.
It is not a de Polignac number, because 87283349 - 212 = 87279253 is a prime.
Together with 87283351, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (87283319) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43641674 + 43641675.
It is an arithmetic number, because the mean of its divisors is an integer number (43641675).
Almost surely, 287283349 is an apocalyptic number.
It is an amenable number.
87283349 is a deficient number, since it is larger than the sum of its proper divisors (1).
87283349 is an equidigital number, since it uses as much as digits as its factorization.
87283349 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 290304, while the sum is 44.
The square root of 87283349 is about 9342.5558066302. Note that the first 3 decimals coincide. The cubic root of 87283349 is about 443.5852879668.
The spelling of 87283349 in words is "eighty-seven million, two hundred eighty-three thousand, three hundred forty-nine".
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