Base | Representation |
---|---|
bin | 10001000000010… |
… | …011100100000001 |
3 | 201212211101011001 |
4 | 101000103210001 |
5 | 1041013332201 |
6 | 44150452001 |
7 | 10032643303 |
oct | 2100234401 |
9 | 655741131 |
10 | 285292801 |
11 | 137049782 |
12 | 7b664001 |
13 | 4714b811 |
14 | 29c65973 |
15 | 1a0a6301 |
hex | 11013901 |
285292801 has 4 divisors (see below), whose sum is σ = 292251204. Its totient is φ = 278334400.
The previous prime is 285292757. The next prime is 285292817. The reversal of 285292801 is 108292582.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 108292582 = 2 ⋅54146291.
It can be written as a sum of positive squares in 2 ways, for example, as 103042801 + 182250000 = 10151^2 + 13500^2 .
It is a cyclic number.
It is not a de Polignac number, because 285292801 - 29 = 285292289 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (285292841) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3479140 + ... + 3479221.
It is an arithmetic number, because the mean of its divisors is an integer number (73062801).
Almost surely, 2285292801 is an apocalyptic number.
It is an amenable number.
285292801 is a deficient number, since it is larger than the sum of its proper divisors (6958403).
285292801 is an equidigital number, since it uses as much as digits as its factorization.
285292801 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6958402.
The product of its (nonzero) digits is 23040, while the sum is 37.
The square root of 285292801 is about 16890.6128071186. The cubic root of 285292801 is about 658.3097252158.
The spelling of 285292801 in words is "two hundred eighty-five million, two hundred ninety-two thousand, eight hundred one".
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