Base | Representation |
---|---|
bin | 11011011110111… |
… | …00001101100010 |
3 | 121001210122121100 |
4 | 31233130031202 |
5 | 433004241010 |
6 | 34513135230 |
7 | 5466362442 |
oct | 1557341542 |
9 | 531718540 |
10 | 230540130 |
11 | 109152237 |
12 | 6525a516 |
13 | 389bb0a2 |
14 | 22892122 |
15 | 1538d2c0 |
hex | dbdc362 |
230540130 has 48 divisors (see below), whose sum is σ = 614033784. Its totient is φ = 59976960.
The previous prime is 230540119. The next prime is 230540131. The reversal of 230540130 is 31045032.
230540130 is a `hidden beast` number, since 230 + 5 + 401 + 30 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 84879369 + 145660761 = 9213^2 + 12069^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (230540131) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27549 + ... + 34928.
Almost surely, 2230540130 is an apocalyptic number.
230540130 is an abundant number, since it is smaller than the sum of its proper divisors (383493654).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230540130 is a wasteful number, since it uses less digits than its factorization.
230540130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62531 (or 62528 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 18.
The square root of 230540130 is about 15183.5480043368. The cubic root of 230540130 is about 613.1718065374.
Adding to 230540130 its reverse (31045032), we get a palindrome (261585162).
The spelling of 230540130 in words is "two hundred thirty million, five hundred forty thousand, one hundred thirty".
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