| Base | Representation |
|---|---|
| bin | 100100011101010… |
| … | …0001010011100000 |
| 3 | 10011020212002120021 |
| 4 | 1020322201103200 |
| 5 | 10001131102240 |
| 6 | 321215323224 |
| 7 | 42212611144 |
| oct | 11072412340 |
| 9 | 3136762507 |
| 10 | 1223300320 |
| 11 | 578580700 |
| 12 | 2a1820514 |
| 13 | 166591b58 |
| 14 | b8677224 |
| 15 | 725de54a |
| hex | 48ea14e0 |
1223300320 has 144 divisors (see below), whose sum is σ = 3203459280. Its totient is φ = 441098240.
The previous prime is 1223300311. The next prime is 1223300321. The reversal of 1223300320 is 230033221.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a junction number, because it is equal to n+sod(n) for n = 1223300294 and 1223300303.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1223300321) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3465264 + ... + 3465616.
It is an arithmetic number, because the mean of its divisors is an integer number (22246245).
Almost surely, 21223300320 is an apocalyptic number.
1223300320 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 1223300320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1601729640).
1223300320 is an abundant number, since it is smaller than the sum of its proper divisors (1980158960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1223300320 is a wasteful number, since it uses less digits than its factorization.
1223300320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 569 (or 550 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 16.
The square root of 1223300320 is about 34975.7104288104. The cubic root of 1223300320 is about 1069.4923844874.
Adding to 1223300320 its reverse (230033221), we get a palindrome (1453333541).
It can be divided in two parts, 12 and 23300320, that added together give a palindrome (23300332).
The spelling of 1223300320 in words is "one billion, two hundred twenty-three million, three hundred thousand, three hundred twenty".
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