Base | Representation |
---|---|
bin | 10001000010000… |
… | …011100001001000 |
3 | 201220200200012000 |
4 | 101002003201020 |
5 | 1041123020433 |
6 | 44204351000 |
7 | 10036563240 |
oct | 2102034110 |
9 | 656620160 |
10 | 285751368 |
11 | 137332261 |
12 | 7b845460 |
13 | 4727c466 |
14 | 29d44b20 |
15 | 1a147113 |
hex | 11083848 |
285751368 has 128 divisors (see below), whose sum is σ = 960595200. Its totient is φ = 76833792.
The previous prime is 285751363. The next prime is 285751381. The reversal of 285751368 is 863157582.
285751368 is a `hidden beast` number, since 2 + 8 + 575 + 13 + 68 = 666.
It is not an unprimeable number, because it can be changed into a prime (285751363) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20146 + ... + 31262.
It is an arithmetic number, because the mean of its divisors is an integer number (7504650).
Almost surely, 2285751368 is an apocalyptic number.
285751368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 285751368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480297600).
285751368 is an abundant number, since it is smaller than the sum of its proper divisors (674843832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
285751368 is a wasteful number, since it uses less digits than its factorization.
285751368 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11156 (or 11146 counting only the distinct ones).
The product of its digits is 403200, while the sum is 45.
The square root of 285751368 is about 16904.1819677854. The cubic root of 285751368 is about 658.6622490283.
The spelling of 285751368 in words is "two hundred eighty-five million, seven hundred fifty-one thousand, three hundred sixty-eight".
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