Base | Representation |
---|---|
bin | 1010011111010… |
… | …00011001000011 |
3 | 20010120000220221 |
4 | 11033220121003 |
5 | 140010434213 |
6 | 12421443511 |
7 | 2115564124 |
oct | 517503103 |
9 | 203500827 |
10 | 87983683 |
11 | 45734497 |
12 | 25570597 |
13 | 152c7268 |
14 | b98404b |
15 | 7ace38d |
hex | 53e8643 |
87983683 has 2 divisors, whose sum is σ = 87983684. Its totient is φ = 87983682.
The previous prime is 87983659. The next prime is 87983711. The reversal of 87983683 is 38638978.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-87983683 is a prime.
It is a super-2 number, since 2×879836832 = 15482256948488978, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 87983683.
It is not a weakly prime, because it can be changed into another prime (87983183) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43991841 + 43991842.
It is an arithmetic number, because the mean of its divisors is an integer number (43991842).
Almost surely, 287983683 is an apocalyptic number.
87983683 is a deficient number, since it is larger than the sum of its proper divisors (1).
87983683 is an equidigital number, since it uses as much as digits as its factorization.
87983683 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 1741824, while the sum is 52.
The square root of 87983683 is about 9379.9617803059. The cubic root of 87983683 is about 444.7685249879.
The spelling of 87983683 in words is "eighty-seven million, nine hundred eighty-three thousand, six hundred eighty-three".
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