Base | Representation |
---|---|
bin | 1110110111101010001 |
3 | 220202101021 |
4 | 1312331101 |
5 | 111042444 |
6 | 14235441 |
7 | 4066360 |
oct | 1667521 |
9 | 822337 |
10 | 487249 |
11 | 303094 |
12 | 1b5b81 |
13 | 140a19 |
14 | c97d7 |
15 | 99584 |
hex | 76f51 |
487249 has 8 divisors (see below), whose sum is σ = 569088. Its totient is φ = 408480.
The previous prime is 487247. The next prime is 487261. The reversal of 487249 is 942784.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 487249 - 21 = 487247 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (487247) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412 + ... + 1069.
It is an arithmetic number, because the mean of its divisors is an integer number (71136).
2487249 is an apocalyptic number.
It is an amenable number.
487249 is a deficient number, since it is larger than the sum of its proper divisors (81839).
487249 is a wasteful number, since it uses less digits than its factorization.
487249 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1535.
The product of its digits is 16128, while the sum is 34.
The square root of 487249 is about 698.0322342127. The cubic root of 487249 is about 78.6895361866.
Subtracting 487249 from its reverse (942784), we obtain a triangular number (455535 = T954).
It can be divided in two parts, 48724 and 9, that multiplied together give a triangular number (438516 = T936).
The spelling of 487249 in words is "four hundred eighty-seven thousand, two hundred forty-nine".
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