Base | Representation |
---|---|
bin | 10010100110101… |
… | …110010100110111 |
3 | 210202100102002220 |
4 | 102212232110313 |
5 | 1114402003421 |
6 | 50550133423 |
7 | 10510104252 |
oct | 2246562467 |
9 | 722312086 |
10 | 312141111 |
11 | 150217267 |
12 | 88651273 |
13 | 4c88c0a9 |
14 | 2d654099 |
15 | 1c60b3c6 |
hex | 129ae537 |
312141111 has 4 divisors (see below), whose sum is σ = 416188152. Its totient is φ = 208094072.
The previous prime is 312141103. The next prime is 312141113. The reversal of 312141111 is 111141213.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111141213 = 3 ⋅37047071.
It is a cyclic number.
It is not a de Polignac number, because 312141111 - 23 = 312141103 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (312141113) 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, 52023516 + ... + 52023521.
It is an arithmetic number, because the mean of its divisors is an integer number (104047038).
Almost surely, 2312141111 is an apocalyptic number.
312141111 is a deficient number, since it is larger than the sum of its proper divisors (104047041).
312141111 is a wasteful number, since it uses less digits than its factorization.
312141111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 104047040.
The product of its digits is 24, while the sum is 15.
The square root of 312141111 is about 17667.5156997242. The cubic root of 312141111 is about 678.3445247379.
Adding to 312141111 its reverse (111141213), we get a palindrome (423282324).
The spelling of 312141111 in words is "three hundred twelve million, one hundred forty-one thousand, one hundred eleven".
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