Base | Representation |
---|---|
bin | 10001000111001… |
… | …001000011000101 |
3 | 202000012102020012 |
4 | 101013021003011 |
5 | 1041443202431 |
6 | 44253120005 |
7 | 10054115516 |
oct | 2107110305 |
9 | 660172205 |
10 | 287084741 |
11 | 138063019 |
12 | 80189005 |
13 | 47628338 |
14 | 2a1b0a0d |
15 | 1a30c22b |
hex | 111c90c5 |
287084741 has 2 divisors, whose sum is σ = 287084742. Its totient is φ = 287084740.
The previous prime is 287084731. The next prime is 287084753. The reversal of 287084741 is 147480782.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 155500900 + 131583841 = 12470^2 + 11471^2 .
It is a cyclic number.
It is not a de Polignac number, because 287084741 - 210 = 287083717 is a prime.
It is a super-3 number, since 3×2870847413 (a number of 26 digits) contains 333 as substring.
It is equal to p15589805 and since 287084741 and 15589805 have the same sum of digits, it is a Honaker prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (287084731) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143542370 + 143542371.
It is an arithmetic number, because the mean of its divisors is an integer number (143542371).
Almost surely, 2287084741 is an apocalyptic number.
It is an amenable number.
287084741 is a deficient number, since it is larger than the sum of its proper divisors (1).
287084741 is an equidigital number, since it uses as much as digits as its factorization.
287084741 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 100352, while the sum is 41.
The square root of 287084741 is about 16943.5752130417. The cubic root of 287084741 is about 659.6851429017.
The spelling of 287084741 in words is "two hundred eighty-seven million, eighty-four thousand, seven hundred forty-one".
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