Base | Representation |
---|---|
bin | 110000110101… |
… | …010110100100 |
3 | 220002101021120 |
4 | 300311112210 |
5 | 11234121234 |
6 | 1134213540 |
7 | 213544665 |
oct | 60652644 |
9 | 26071246 |
10 | 12801444 |
11 | 7253a07 |
12 | 43542b0 |
13 | 2862a26 |
14 | 19b336c |
15 | 11cd049 |
hex | c355a4 |
12801444 has 24 divisors (see below), whose sum is σ = 30565920. Its totient is φ = 4167744.
The previous prime is 12801443. The next prime is 12801449. The reversal of 12801444 is 44410821.
It is not an unprimeable number, because it can be changed into a prime (12801443) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11889 + ... + 12920.
It is an arithmetic number, because the mean of its divisors is an integer number (1273580).
Almost surely, 212801444 is an apocalyptic number.
It is an amenable number.
12801444 is an abundant number, since it is smaller than the sum of its proper divisors (17764476).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12801444 is a wasteful number, since it uses less digits than its factorization.
12801444 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24859 (or 24857 counting only the distinct ones).
The product of its (nonzero) digits is 1024, while the sum is 24.
The square root of 12801444 is about 3577.9105634434. The cubic root of 12801444 is about 233.9302151463.
The spelling of 12801444 in words is "twelve million, eight hundred one thousand, four hundred forty-four".
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