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144513 = 3216057
BaseRepresentation
bin100011010010000001
321100020100
4203102001
514111023
63033013
71141215
oct432201
9240210
10144513
1199636
126b769
1350a15
143a945
152cc43
hex23481

144513 has 6 divisors (see below), whose sum is σ = 208754. Its totient is φ = 96336.

The previous prime is 144511. The next prime is 144539. The reversal of 144513 is 315441.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 121104 + 23409 = 348^2 + 153^2 .

It is not a de Polignac number, because 144513 - 21 = 144511 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 (144511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8020 + ... + 8037.

2144513 is an apocalyptic number.

It is an amenable number.

144513 is a deficient number, since it is larger than the sum of its proper divisors (64241).

144513 is a wasteful number, since it uses less digits than its factorization.

144513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16063 (or 16060 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 144513 is about 380.1486551338. The cubic root of 144513 is about 52.4769967251.

Adding to 144513 its reverse (315441), we get a palindrome (459954).

The spelling of 144513 in words is "one hundred forty-four thousand, five hundred thirteen".

Divisors: 1 3 9 16057 48171 144513