Base | Representation |
---|---|
bin | 10001000000100… |
… | …101111100001000 |
3 | 201212222012101212 |
4 | 101000211330020 |
5 | 1041023234242 |
6 | 44152232252 |
7 | 10033405613 |
oct | 2100457410 |
9 | 655865355 |
10 | 285368072 |
11 | 1370a0290 |
12 | 7b69b688 |
13 | 47176b62 |
14 | 29c8517a |
15 | 1a0bd782 |
hex | 11025f08 |
285368072 has 32 divisors (see below), whose sum is σ = 584733600. Its totient is φ = 129484800.
The previous prime is 285368071. The next prime is 285368089. The reversal of 285368072 is 270863582.
It is not an unprimeable number, because it can be changed into a prime (285368071) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53879 + ... + 58937.
It is an arithmetic number, because the mean of its divisors is an integer number (18272925).
Almost surely, 2285368072 is an apocalyptic number.
285368072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
285368072 is an abundant number, since it is smaller than the sum of its proper divisors (299365528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
285368072 is a wasteful number, since it uses less digits than its factorization.
285368072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5717 (or 5713 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 41.
The square root of 285368072 is about 16892.8408504905. The cubic root of 285368072 is about 658.3676157689.
The spelling of 285368072 in words is "two hundred eighty-five million, three hundred sixty-eight thousand, seventy-two".
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