Base | Representation |
---|---|
bin | 1110110011110… |
… | …01100110000111 |
3 | 22122202112112222 |
4 | 13121321212013 |
5 | 223300330043 |
6 | 20154402555 |
7 | 3035636441 |
oct | 731714607 |
9 | 278675488 |
10 | 124230023 |
11 | 64140945 |
12 | 3573045b |
13 | 1c9783b8 |
14 | 126db491 |
15 | ad8dd68 |
hex | 7679987 |
124230023 has 4 divisors (see below), whose sum is σ = 124303848. Its totient is φ = 124156200.
The previous prime is 124229983. The next prime is 124230031. The reversal of 124230023 is 320032421.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320032421 = 1789 ⋅178889.
It is a cyclic number.
It is not a de Polignac number, because 124230023 - 220 = 123181447 is a prime.
It is a super-2 number, since 2×1242300232 = 30866197229161058, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 124229983 and 124230010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (124230083) 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, 34328 + ... + 37773.
It is an arithmetic number, because the mean of its divisors is an integer number (31075962).
Almost surely, 2124230023 is an apocalyptic number.
124230023 is a deficient number, since it is larger than the sum of its proper divisors (73825).
124230023 is an equidigital number, since it uses as much as digits as its factorization.
124230023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 73824.
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 124230023 is about 11145.8522778655. The cubic root of 124230023 is about 498.9712487936.
Adding to 124230023 its reverse (320032421), we get a palindrome (444262444).
The spelling of 124230023 in words is "one hundred twenty-four million, two hundred thirty thousand, twenty-three".
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