Base | Representation |
---|---|
bin | 1110110011101… |
… | …11111110110101 |
3 | 22122202012111011 |
4 | 13121313332311 |
5 | 223300122123 |
6 | 20154312221 |
7 | 3035611246 |
oct | 731677665 |
9 | 278665434 |
10 | 124223413 |
11 | 64136986 |
12 | 35728671 |
13 | 1c9753a2 |
14 | 126d8ccd |
15 | ad8be0d |
hex | 7677fb5 |
124223413 has 4 divisors (see below), whose sum is σ = 124289100. Its totient is φ = 124157728.
The previous prime is 124223347. The next prime is 124223423. The reversal of 124223413 is 314322421.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314322421 = 7 ⋅44903203.
It can be written as a sum of positive squares in 2 ways, for example, as 36276529 + 87946884 = 6023^2 + 9378^2 .
It is a cyclic number.
It is not a de Polignac number, because 124223413 - 217 = 124092341 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 (124223423) 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, 29920 + ... + 33817.
It is an arithmetic number, because the mean of its divisors is an integer number (31072275).
Almost surely, 2124223413 is an apocalyptic number.
It is an amenable number.
124223413 is a deficient number, since it is larger than the sum of its proper divisors (65687).
124223413 is an equidigital number, since it uses as much as digits as its factorization.
124223413 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65686.
The product of its digits is 1152, while the sum is 22.
The square root of 124223413 is about 11145.5557510606. Note that the first 3 decimals coincide. The cubic root of 124223413 is about 498.9623989241.
Adding to 124223413 its reverse (314322421), we get a palindrome (438545834).
The spelling of 124223413 in words is "one hundred twenty-four million, two hundred twenty-three thousand, four hundred thirteen".
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