Base | Representation |
---|---|
bin | 10000111111101… |
… | …011111010000111 |
3 | 201212112010100021 |
4 | 100333223322013 |
5 | 1040443133000 |
6 | 44143200011 |
7 | 10031365615 |
oct | 2077537207 |
9 | 655463307 |
10 | 285130375 |
11 | 136a48742 |
12 | 7b5a6007 |
13 | 470c28ca |
14 | 29c226b5 |
15 | 1a07311a |
hex | 10febe87 |
285130375 has 32 divisors (see below), whose sum is σ = 380540160. Its totient is φ = 212544000.
The previous prime is 285130357. The next prime is 285130393. The reversal of 285130375 is 573031582.
It is an interprime number because it is at equal distance from previous prime (285130357) and next prime (285130393).
It is not a de Polignac number, because 285130375 - 29 = 285129863 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 285130375.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231010 + ... + 232240.
It is an arithmetic number, because the mean of its divisors is an integer number (11891880).
Almost surely, 2285130375 is an apocalyptic number.
285130375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
285130375 is a deficient number, since it is larger than the sum of its proper divisors (95409785).
285130375 is a wasteful number, since it uses less digits than its factorization.
285130375 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1372 (or 1362 counting only the distinct ones).
The product of its (nonzero) digits is 25200, while the sum is 34.
The square root of 285130375 is about 16885.8039488797. The cubic root of 285130375 is about 658.1847694818.
The spelling of 285130375 in words is "two hundred eighty-five million, one hundred thirty thousand, three hundred seventy-five".
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