Base | Representation |
---|---|
bin | 11101000011001… |
… | …101101001000001 |
3 | 1020222002112211020 |
4 | 131003031221001 |
5 | 1444232202234 |
6 | 120210140053 |
7 | 15035450343 |
oct | 3503155101 |
9 | 1228075736 |
10 | 487381569 |
11 | 230128a94 |
12 | 117281629 |
13 | 79c8777c |
14 | 48a2d293 |
15 | 2cbc4549 |
hex | 1d0cda41 |
487381569 has 32 divisors (see below), whose sum is σ = 704436480. Its totient is φ = 298814208.
The previous prime is 487381553. The next prime is 487381577. The reversal of 487381569 is 965183784.
It is not a de Polignac number, because 487381569 - 24 = 487381553 is a prime.
It is a super-2 number, since 2×4873815692 = 475081587601803522, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (487381519) 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 in 31 ways as a sum of consecutive naturals, for example, 746047 + ... + 746699.
It is an arithmetic number, because the mean of its divisors is an integer number (22013640).
Almost surely, 2487381569 is an apocalyptic number.
It is an amenable number.
487381569 is a deficient number, since it is larger than the sum of its proper divisors (217054911).
487381569 is a wasteful number, since it uses less digits than its factorization.
487381569 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1081.
The product of its digits is 1451520, while the sum is 51.
The square root of 487381569 is about 22076.7200688870. The cubic root of 487381569 is about 786.9667206384.
The spelling of 487381569 in words is "four hundred eighty-seven million, three hundred eighty-one thousand, five hundred sixty-nine".
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