Base | Representation |
---|---|
bin | 10001001011101… |
… | …11101011101111 |
3 | 101001020022221201 |
4 | 20211313223233 |
5 | 243400121020 |
6 | 22145310331 |
7 | 3400133131 |
oct | 1045675357 |
9 | 331208851 |
10 | 144145135 |
11 | 74403412 |
12 | 403353a7 |
13 | 23b2bca4 |
14 | 15203051 |
15 | c9c4a0a |
hex | 8977aef |
144145135 has 16 divisors (see below), whose sum is σ = 180113472. Its totient is φ = 110649600.
The previous prime is 144145129. The next prime is 144145139. The reversal of 144145135 is 531541441.
It is not a de Polignac number, because 144145135 - 223 = 135756527 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144145139) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6742 + ... + 18268.
It is an arithmetic number, because the mean of its divisors is an integer number (11257092).
Almost surely, 2144145135 is an apocalyptic number.
144145135 is a deficient number, since it is larger than the sum of its proper divisors (35968337).
144145135 is a wasteful number, since it uses less digits than its factorization.
144145135 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11634.
The product of its digits is 4800, while the sum is 28.
The square root of 144145135 is about 12006.0457686950. The cubic root of 144145135 is about 524.3243129100.
Adding to 144145135 its reverse (531541441), we get a palindrome (675686576).
The spelling of 144145135 in words is "one hundred forty-four million, one hundred forty-five thousand, one hundred thirty-five".
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