Base | Representation |
---|---|
bin | 11011011011110… |
… | …11000010011111 |
3 | 121001001102121220 |
4 | 31231323002133 |
5 | 432404021421 |
6 | 34500424423 |
7 | 5463114153 |
oct | 1555730237 |
9 | 531042556 |
10 | 230142111 |
11 | 108a001a1 |
12 | 650a8113 |
13 | 388abb84 |
14 | 227cb063 |
15 | 153103c6 |
hex | db7b09f |
230142111 has 4 divisors (see below), whose sum is σ = 306856152. Its totient is φ = 153428072.
The previous prime is 230142097. The next prime is 230142113. The reversal of 230142111 is 111241032.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 230142111 - 29 = 230141599 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230142113) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38357016 + ... + 38357021.
It is an arithmetic number, because the mean of its divisors is an integer number (76714038).
Almost surely, 2230142111 is an apocalyptic number.
230142111 is a deficient number, since it is larger than the sum of its proper divisors (76714041).
230142111 is an equidigital number, since it uses as much as digits as its factorization.
230142111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 76714040.
The product of its (nonzero) digits is 48, while the sum is 15.
The square root of 230142111 is about 15170.4354255242. The cubic root of 230142111 is about 612.8187304602.
Adding to 230142111 its reverse (111241032), we get a palindrome (341383143).
The spelling of 230142111 in words is "two hundred thirty million, one hundred forty-two thousand, one hundred eleven".
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