Base | Representation |
---|---|
bin | 111010010110… |
… | …0010100100000 |
3 | 2010120010220212 |
4 | 1310230110200 |
5 | 30312341430 |
6 | 3011353252 |
7 | 521004242 |
oct | 164542440 |
9 | 63503825 |
10 | 30590240 |
11 | 162a399a |
12 | a2b2828 |
13 | 6450845 |
14 | 40c4092 |
15 | 2a43b95 |
hex | 1d2c520 |
30590240 has 24 divisors (see below), whose sum is σ = 72269820. Its totient is φ = 12236032.
The previous prime is 30590237. The next prime is 30590269. The reversal of 30590240 is 4209503.
It can be written as a sum of positive squares in 2 ways, for example, as 28858384 + 1731856 = 5372^2 + 1316^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95435 + ... + 95754.
Almost surely, 230590240 is an apocalyptic number.
It is an amenable number.
30590240 is an abundant number, since it is smaller than the sum of its proper divisors (41679580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30590240 is a wasteful number, since it uses less digits than its factorization.
30590240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 191204 (or 191196 counting only the distinct ones).
The product of its (nonzero) digits is 1080, while the sum is 23.
The square root of 30590240 is about 5530.8444201586. The cubic root of 30590240 is about 312.7478226167.
Adding to 30590240 its reverse (4209503), we get a palindrome (34799743).
The spelling of 30590240 in words is "thirty million, five hundred ninety thousand, two hundred forty".
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