Base | Representation |
---|---|
bin | 10001000000010… |
… | …001110100111111 |
3 | 201212211000101212 |
4 | 101000101310333 |
5 | 1041013120240 |
6 | 44150355035 |
7 | 10032613502 |
oct | 2100216477 |
9 | 655730355 |
10 | 285285695 |
11 | 137044402 |
12 | 7b65ba7b |
13 | 47148506 |
14 | 29c63139 |
15 | 1a0a4165 |
hex | 11011d3f |
285285695 has 4 divisors (see below), whose sum is σ = 342342840. Its totient is φ = 228228552.
The previous prime is 285285683. The next prime is 285285727. The reversal of 285285695 is 596582582.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 596582582 = 2 ⋅298291291.
It is a cyclic number.
It is not a de Polignac number, because 285285695 - 218 = 285023551 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28528565 + ... + 28528574.
It is an arithmetic number, because the mean of its divisors is an integer number (85585710).
Almost surely, 2285285695 is an apocalyptic number.
285285695 is a deficient number, since it is larger than the sum of its proper divisors (57057145).
285285695 is an equidigital number, since it uses as much as digits as its factorization.
285285695 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57057144.
The product of its digits is 1728000, while the sum is 50.
The square root of 285285695 is about 16890.4024522804. The cubic root of 285285695 is about 658.3042595005.
The spelling of 285285695 in words is "two hundred eighty-five million, two hundred eighty-five thousand, six hundred ninety-five".
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