Base | Representation |
---|---|
bin | 1110110101010… |
… | …00000010000111 |
3 | 22200010012110201 |
4 | 13122220002013 |
5 | 223322421411 |
6 | 20202431331 |
7 | 3040361125 |
oct | 732500207 |
9 | 280105421 |
10 | 124420231 |
11 | 64260841 |
12 | 35802547 |
13 | 1ca13b50 |
14 | 1274a915 |
15 | adca3c1 |
hex | 76a8087 |
124420231 has 8 divisors (see below), whose sum is σ = 134346240. Its totient is φ = 114544992.
The previous prime is 124420223. The next prime is 124420259. The reversal of 124420231 is 132024421.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 124420231 - 23 = 124420223 is a prime.
It is a super-2 number, since 2×1244202312 = 30960787764186722, 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 = 124420199 and 124420208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (124420201) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7516 + ... + 17473.
It is an arithmetic number, because the mean of its divisors is an integer number (16793280).
Almost surely, 2124420231 is an apocalyptic number.
124420231 is a deficient number, since it is larger than the sum of its proper divisors (9926009).
124420231 is a wasteful number, since it uses less digits than its factorization.
124420231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25385.
The product of its (nonzero) digits is 384, while the sum is 19.
The square root of 124420231 is about 11154.3816951008. The cubic root of 124420231 is about 499.2257764412.
Adding to 124420231 its reverse (132024421), we get a palindrome (256444652).
The spelling of 124420231 in words is "one hundred twenty-four million, four hundred twenty thousand, two hundred thirty-one".
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