| Base | Representation |
|---|---|
| bin | 1110110100101… |
| … | …01000010010100 |
| 3 | 22122222020201211 |
| 4 | 13122111002110 |
| 5 | 223312424140 |
| 6 | 20201031204 |
| 7 | 3036615226 |
| oct | 732250224 |
| 9 | 278866654 |
| 10 | 124342420 |
| 11 | 64208334 |
| 12 | 35785504 |
| 13 | 1c9b75c7 |
| 14 | 1272a416 |
| 15 | adb22ea |
| hex | 7695094 |
124342420 has 48 divisors (see below), whose sum is σ = 277860240. Its totient is φ = 46577664.
The previous prime is 124342417. The next prime is 124342429. The reversal of 124342420 is 24243421.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 3825936 + 120516484 = 1956^2 + 10978^2 .
It is a super-2 number, since 2×1243424202 = 30922074822912800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 124342391 and 124342400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (124342429) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77062 + ... + 78658.
It is an arithmetic number, because the mean of its divisors is an integer number (5788755).
Almost surely, 2124342420 is an apocalyptic number.
124342420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 124342420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138930120).
124342420 is an abundant number, since it is smaller than the sum of its proper divisors (153517820).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
124342420 is a wasteful number, since it uses less digits than its factorization.
124342420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1852 (or 1850 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 22.
The square root of 124342420 is about 11150.8932377635. The cubic root of 124342420 is about 499.1216846945.
Adding to 124342420 its reverse (24243421), we get a palindrome (148585841).
The spelling of 124342420 in words is "one hundred twenty-four million, three hundred forty-two thousand, four hundred twenty".
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