| Base | Representation |
|---|---|
| bin | 100101000101001… |
| … | …0111101000110000 |
| 3 | 10012201020112202120 |
| 4 | 1022022113220300 |
| 5 | 10022010412430 |
| 6 | 323244114240 |
| 7 | 42555541146 |
| oct | 11212275060 |
| 9 | 3181215676 |
| 10 | 1244232240 |
| 11 | 589378109 |
| 12 | 2a8835980 |
| 13 | 16aa104c4 |
| 14 | bb365596 |
| 15 | 74376610 |
| hex | 4a297a30 |
1244232240 has 160 divisors (see below), whose sum is σ = 4066614720. Its totient is φ = 314216448.
The previous prime is 1244232217. The next prime is 1244232257. The reversal of 1244232240 is 422324421.
It is a super-3 number, since 3×12442322403 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 1244232240.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 367194 + ... + 370566.
It is an arithmetic number, because the mean of its divisors is an integer number (25416342).
Almost surely, 21244232240 is an apocalyptic number.
1244232240 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 1244232240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2033307360).
1244232240 is an abundant number, since it is smaller than the sum of its proper divisors (2822382480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1244232240 is a wasteful number, since it uses less digits than its factorization.
1244232240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3471 (or 3465 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 24.
The square root of 1244232240 is about 35273.6763040089. The cubic root of 1244232240 is about 1075.5579551725.
Adding to 1244232240 its reverse (422324421), we get a palindrome (1666556661).
The spelling of 1244232240 in words is "one billion, two hundred forty-four million, two hundred thirty-two thousand, two hundred forty".
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