Base | Representation |
---|---|
bin | 11011011110101… |
… | …01011000001110 |
3 | 121001202020012202 |
4 | 31233111120032 |
5 | 433002342032 |
6 | 34512401502 |
7 | 5466215030 |
oct | 1557253016 |
9 | 531666182 |
10 | 230512142 |
11 | 109133203 |
12 | 65246292 |
13 | 389ab423 |
14 | 22885c50 |
15 | 15384d62 |
hex | dbd560e |
230512142 has 32 divisors (see below), whose sum is σ = 416966400. Its totient is φ = 93365568.
The previous prime is 230512103. The next prime is 230512147. The reversal of 230512142 is 241215032.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230512147) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150593 + ... + 152115.
It is an arithmetic number, because the mean of its divisors is an integer number (13030200).
Almost surely, 2230512142 is an apocalyptic number.
230512142 is a deficient number, since it is larger than the sum of its proper divisors (186454258).
230512142 is a wasteful number, since it uses less digits than its factorization.
230512142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2120.
The product of its (nonzero) digits is 480, while the sum is 20.
The square root of 230512142 is about 15182.6263208972. The cubic root of 230512142 is about 613.1469921345.
Adding to 230512142 its reverse (241215032), we get a palindrome (471727174).
The spelling of 230512142 in words is "two hundred thirty million, five hundred twelve thousand, one hundred forty-two".
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