| Base | Representation |
|---|---|
| bin | 1110110011101… |
| … | …11111011110100 |
| 3 | 22122202012020000 |
| 4 | 13121313323310 |
| 5 | 223300120340 |
| 6 | 20154311300 |
| 7 | 3035610552 |
| oct | 731677364 |
| 9 | 278665200 |
| 10 | 124223220 |
| 11 | 64136820 |
| 12 | 35728530 |
| 13 | 1c975284 |
| 14 | 126d8bd2 |
| 15 | ad8bd30 |
| hex | 7677ef4 |
124223220 has 120 divisors (see below), whose sum is σ = 425180448. Its totient is φ = 30110400.
The previous prime is 124223219. The next prime is 124223221. The reversal of 124223220 is 22322421.
It is an interprime number because it is at equal distance from previous prime (124223219) and next prime (124223221).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 124223193 and 124223202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (124223221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14335 + ... + 21305.
Almost surely, 2124223220 is an apocalyptic number.
124223220 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 124223220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212590224).
124223220 is an abundant number, since it is smaller than the sum of its proper divisors (300957228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
124223220 is a wasteful number, since it uses less digits than its factorization.
124223220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7003 (or 6992 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 18.
The square root of 124223220 is about 11145.5470928977. The cubic root of 124223220 is about 498.9621405193.
Adding to 124223220 its reverse (22322421), we get a palindrome (146545641).
The spelling of 124223220 in words is "one hundred twenty-four million, two hundred twenty-three thousand, two hundred twenty".
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