Base | Representation |
---|---|
bin | 1110001100101111111… |
… | …11110111011110111001 |
3 | 1201122022021221101001021 |
4 | 13012113333313132321 |
5 | 30443140120001033 |
6 | 1012043555422441 |
7 | 50151104346553 |
oct | 7062777673671 |
9 | 1648267841037 |
10 | 487881406393 |
11 | 178a00375787 |
12 | 7a67a5b4a21 |
13 | 37012562524 |
14 | 198839744d3 |
15 | ca56c88b2d |
hex | 7197ff77b9 |
487881406393 has 8 divisors (see below), whose sum is σ = 488704593920. Its totient is φ = 487058333040.
The previous prime is 487881406387. The next prime is 487881406427. The reversal of 487881406393 is 393604188784.
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 487881406393 - 221 = 487879309241 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (487881406303) 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, 15606088 + ... + 15637318.
It is an arithmetic number, because the mean of its divisors is an integer number (61088074240).
Almost surely, 2487881406393 is an apocalyptic number.
It is an amenable number.
487881406393 is a deficient number, since it is larger than the sum of its proper divisors (823187527).
487881406393 is a wasteful number, since it uses less digits than its factorization.
487881406393 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 57087.
The product of its (nonzero) digits is 27869184, while the sum is 61.
The spelling of 487881406393 in words is "four hundred eighty-seven billion, eight hundred eighty-one million, four hundred six thousand, three hundred ninety-three".
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