Base | Representation |
---|---|
bin | 11101000010110… |
… | …100111101110001 |
3 | 1020221220102011211 |
4 | 131002310331301 |
5 | 1444220433442 |
6 | 120204040121 |
7 | 15034546564 |
oct | 3502647561 |
9 | 1227812154 |
10 | 487280497 |
11 | 23006a060 |
12 | 117233041 |
13 | 79c50772 |
14 | 48a044db |
15 | 2cba4617 |
hex | 1d0b4f71 |
487280497 has 4 divisors (see below), whose sum is σ = 531578736. Its totient is φ = 442982260.
The previous prime is 487280489. The next prime is 487280501. The reversal of 487280497 is 794082784.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 487280497 - 23 = 487280489 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 487280497.
It is not an unprimeable number, because it can be changed into a prime (487280407) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22149103 + ... + 22149124.
It is an arithmetic number, because the mean of its divisors is an integer number (132894684).
Almost surely, 2487280497 is an apocalyptic number.
It is an amenable number.
487280497 is a deficient number, since it is larger than the sum of its proper divisors (44298239).
487280497 is a wasteful number, since it uses less digits than its factorization.
487280497 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 44298238.
The product of its (nonzero) digits is 903168, while the sum is 49.
The square root of 487280497 is about 22074.4308420398. The cubic root of 487280497 is about 786.9123171317.
The spelling of 487280497 in words is "four hundred eighty-seven million, two hundred eighty thousand, four hundred ninety-seven".
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