Base | Representation |
---|---|
bin | 1110001100101000101… |
… | …00111110010011010001 |
3 | 1201122011000001222202221 |
4 | 13012110110332103101 |
5 | 30443023334033411 |
6 | 1012033515541041 |
7 | 50146426100134 |
oct | 7062424762321 |
9 | 1648130058687 |
10 | 487819830481 |
11 | 1789796388a5 |
12 | 7a661a5a781 |
13 | 37002883189 |
14 | 1987970621b |
15 | ca51674071 |
hex | 719453e4d1 |
487819830481 has 9 divisors (see below), whose sum is σ = 509968336521. Its totient is φ = 466594906932.
The previous prime is 487819830467. The next prime is 487819830529. The reversal of 487819830481 is 184038918784.
The square root of 487819830481 is 698441.
It is a perfect power (a square), and thus also a powerful number.
It is not a de Polignac number, because 487819830481 - 215 = 487819797713 is a prime.
It is a super-2 number, since 2×4878198304812 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (487819830781) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16048960 + ... + 16079326.
Almost surely, 2487819830481 is an apocalyptic number.
487819830481 is the 698441-st square number.
487819830481 is the 349221-st centered octagonal number.
It is an amenable number.
487819830481 is a deficient number, since it is larger than the sum of its proper divisors (22148506040).
487819830481 is an frugal number, since it uses more digits than its factorization.
487819830481 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 60780 (or 30390 counting only the distinct ones).
The product of its (nonzero) digits is 12386304, while the sum is 61.
The spelling of 487819830481 in words is "four hundred eighty-seven billion, eight hundred nineteen million, eight hundred thirty thousand, four hundred eighty-one".
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