Base | Representation |
---|---|
bin | 1110110111101001000 |
3 | 220202100221 |
4 | 1312331020 |
5 | 111042430 |
6 | 14235424 |
7 | 4066345 |
oct | 1667510 |
9 | 822327 |
10 | 487240 |
11 | 303086 |
12 | 1b5b74 |
13 | 140a10 |
14 | c97cc |
15 | 9957a |
hex | 76f48 |
487240 has 32 divisors (see below), whose sum is σ = 1181880. Its totient is φ = 179712.
The previous prime is 487219. The next prime is 487247. The reversal of 487240 is 42784.
It can be written as a sum of positive squares in 4 ways, for example, as 171396 + 315844 = 414^2 + 562^2 .
It is not an unprimeable number, because it can be changed into a prime (487247) 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 in 7 ways as a sum of consecutive naturals, for example, 52 + ... + 988.
2487240 is an apocalyptic number.
487240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 487240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590940).
487240 is an abundant number, since it is smaller than the sum of its proper divisors (694640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
487240 is a wasteful number, since it uses less digits than its factorization.
487240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 961 (or 957 counting only the distinct ones).
The product of its (nonzero) digits is 1792, while the sum is 25.
The square root of 487240 is about 698.0257874893. The cubic root of 487240 is about 78.6890516908.
It can be divided in two parts, 487 and 240, that added together give a palindrome (727).
The spelling of 487240 in words is "four hundred eighty-seven thousand, two hundred forty".
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