Base | Representation |
---|---|
bin | 1101101110011… |
… | …11011011100111 |
3 | 22000122221110021 |
4 | 12313033123213 |
5 | 213434110143 |
6 | 15231540011 |
7 | 2565466012 |
oct | 667173347 |
9 | 260587407 |
10 | 115144423 |
11 | 59aa5789 |
12 | 3268a607 |
13 | 1ab16ac4 |
14 | 11414379 |
15 | a196ced |
hex | 6dcf6e7 |
115144423 has 4 divisors (see below), whose sum is σ = 116051200. Its totient is φ = 114237648.
The previous prime is 115144409. The next prime is 115144483. The reversal of 115144423 is 324441511.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324441511 = 19 ⋅17075869.
It is a cyclic number.
It is not a de Polignac number, because 115144423 - 217 = 115013351 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (115144483) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453198 + ... + 453451.
It is an arithmetic number, because the mean of its divisors is an integer number (29012800).
Almost surely, 2115144423 is an apocalyptic number.
115144423 is a deficient number, since it is larger than the sum of its proper divisors (906777).
115144423 is an equidigital number, since it uses as much as digits as its factorization.
115144423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 906776.
The product of its digits is 1920, while the sum is 25.
The square root of 115144423 is about 10730.5369390353. The cubic root of 115144423 is about 486.4978992490.
Adding to 115144423 its reverse (324441511), we get a palindrome (439585934).
The spelling of 115144423 in words is "one hundred fifteen million, one hundred forty-four thousand, four hundred twenty-three".
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