Base | Representation |
---|---|
bin | 11111111111101110011101 |
3 | 120210010110121 |
4 | 133333232131 |
5 | 4121344420 |
6 | 455434541 |
7 | 131202211 |
oct | 37775635 |
9 | 16703417 |
10 | 8387485 |
11 | 4809707 |
12 | 2985a51 |
13 | 1978912 |
14 | 1184941 |
15 | b0a2aa |
hex | 7ffb9d |
8387485 has 8 divisors (see below), whose sum is σ = 10084536. Its totient is φ = 6696960.
The previous prime is 8387473. The next prime is 8387501. The reversal of 8387485 is 5847838.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 4901796 + 3485689 = 2214^2 + 1867^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-8387485 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 1897 + ... + 4513.
It is an arithmetic number, because the mean of its divisors is an integer number (1260567).
Almost surely, 28387485 is an apocalyptic number.
It is an amenable number.
8387485 is a deficient number, since it is larger than the sum of its proper divisors (1697051).
8387485 is a wasteful number, since it uses less digits than its factorization.
8387485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3263.
The product of its digits is 215040, while the sum is 43.
The square root of 8387485 is about 2896.1155018404. The cubic root of 8387485 is about 203.1782672135.
The spelling of 8387485 in words is "eight million, three hundred eighty-seven thousand, four hundred eighty-five".
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