Base | Representation |
---|---|
bin | 10001001101101… |
… | …11111011100001 |
3 | 101001201200221011 |
4 | 20212313323201 |
5 | 243432031124 |
6 | 22155100521 |
7 | 3402310264 |
oct | 1046677341 |
9 | 331650834 |
10 | 144408289 |
11 | 745730a3 |
12 | 40441741 |
13 | 23bc19bc |
14 | 15270cdb |
15 | ca27994 |
hex | 89b7ee1 |
144408289 has 9 divisors (see below), whose sum is σ = 147563481. Its totient is φ = 141319920.
The previous prime is 144408281. The next prime is 144408293. The reversal of 144408289 is 982804441.
It is a happy number.
The square root of 144408289 is 12017.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 4 ways, for example, as 216225 + 144192064 = 465^2 + 12008^2 .
It is not a de Polignac number, because 144408289 - 23 = 144408281 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (144408281) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 732939 + ... + 733135.
Almost surely, 2144408289 is an apocalyptic number.
144408289 is the 12017-th square number.
144408289 is the 6009-th centered octagonal number.
It is an amenable number.
144408289 is a deficient number, since it is larger than the sum of its proper divisors (3155192).
144408289 is an frugal number, since it uses more digits than its factorization.
144408289 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 516 (or 258 counting only the distinct ones).
The product of its (nonzero) digits is 73728, while the sum is 40.
The cubic root of 144408289 is about 524.6431909635.
The spelling of 144408289 in words is "one hundred forty-four million, four hundred eight thousand, two hundred eighty-nine".
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