Base | Representation |
---|---|
bin | 1110110010001… |
… | …00011110001100 |
3 | 22122100111001220 |
4 | 13121010132030 |
5 | 223221344203 |
6 | 20150003340 |
7 | 3034042161 |
oct | 731043614 |
9 | 278314056 |
10 | 124012428 |
11 | 64002411 |
12 | 35646550 |
13 | 1c900347 |
14 | 12682068 |
15 | ad49653 |
hex | 764478c |
124012428 has 12 divisors (see below), whose sum is σ = 289362360. Its totient is φ = 41337472.
The previous prime is 124012423. The next prime is 124012517. The reversal of 124012428 is 824210421.
124012428 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (12).
124012428 is strictly pandigital in base 9.
It is a junction number, because it is equal to n+sod(n) for n = 124012398 and 124012407.
It is not an unprimeable number, because it can be changed into a prime (124012423) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5167173 + ... + 5167196.
It is an arithmetic number, because the mean of its divisors is an integer number (24113530).
Almost surely, 2124012428 is an apocalyptic number.
It is an amenable number.
124012428 is an abundant number, since it is smaller than the sum of its proper divisors (165349932).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
124012428 is a wasteful number, since it uses less digits than its factorization.
124012428 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10334376 (or 10334374 counting only the distinct ones).
The product of its (nonzero) digits is 1024, while the sum is 24.
The square root of 124012428 is about 11136.0867453518. The cubic root of 124012428 is about 498.6797543043.
Adding to 124012428 its reverse (824210421), we get a palindrome (948222849).
The spelling of 124012428 in words is "one hundred twenty-four million, twelve thousand, four hundred twenty-eight".
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