Base | Representation |
---|---|
bin | 10000111111011… |
… | …101010010110000 |
3 | 201212102002020010 |
4 | 100333131102300 |
5 | 1040434224022 |
6 | 44142014520 |
7 | 10031026236 |
oct | 2077352260 |
9 | 655362203 |
10 | 285070512 |
11 | 136a07771 |
12 | 7b577440 |
13 | 470a159c |
14 | 29c08956 |
15 | 1a06050c |
hex | 10fdd4b0 |
285070512 has 30 divisors (see below), whose sum is σ = 736734468. Its totient is φ = 94984512.
The previous prime is 285070447. The next prime is 285070519. The reversal of 285070512 is 215070582.
It is a self number, because there is not a number n which added to its sum of digits gives 285070512.
It is not an unprimeable number, because it can be changed into a prime (285070519) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115758 + ... + 118194.
Almost surely, 2285070512 is an apocalyptic number.
It is an amenable number.
285070512 is an abundant number, since it is smaller than the sum of its proper divisors (451663956).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
285070512 is an frugal number, since it uses more digits than its factorization.
285070512 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4885 (or 2442 counting only the distinct ones).
The product of its (nonzero) digits is 5600, while the sum is 30.
The square root of 285070512 is about 16884.0312721814. The cubic root of 285070512 is about 658.1387043878.
It can be divided in two parts, 285070 and 512, that added together give a palindrome (285582).
The spelling of 285070512 in words is "two hundred eighty-five million, seventy thousand, five hundred twelve".
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