| Base | Representation |
|---|---|
| bin | 1110001001101100100… |
| … | …1111100101101001000 |
| 3 | 212020112112111220012120 |
| 4 | 3202123021330231020 |
| 5 | 12440403014320000 |
| 6 | 303404404011240 |
| 7 | 23364525325314 |
| oct | 3423311745510 |
| 9 | 766475456176 |
| 10 | 243121245000 |
| 11 | 9411a671867 |
| 12 | 3b150990b20 |
| 13 | 19c06c2776a |
| 14 | baa5016b44 |
| 15 | 64cde9e6a0 |
| hex | 389b27cb48 |
243121245000 has 160 divisors (see below), whose sum is σ = 799485957600. Its totient is φ = 61420032000.
The previous prime is 243121244911. The next prime is 243121245007. The reversal of 243121245000 is 542121342.
243121245000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-4 number, since 4×2431212450004 (a number of 47 digits) contains 4444 as substring.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is not an unprimeable number, because it can be changed into a prime (243121245007) 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, 141529 + ... + 711528.
It is an arithmetic number, because the mean of its divisors is an integer number (4996787235).
Almost surely, 2243121245000 is an apocalyptic number.
243121245000 is a gapful number since it is divisible by the number (20) 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 243121245000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399742978800).
243121245000 is an abundant number, since it is smaller than the sum of its proper divisors (556364712600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
243121245000 is a wasteful number, since it uses less digits than its factorization.
243121245000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 853105 (or 853086 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 24.
Adding to 243121245000 its reverse (542121342), we get a palindrome (243663366342).
The spelling of 243121245000 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-five thousand".
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