Base | Representation |
---|---|
bin | 10001001100010… |
… | …00100111110001 |
3 | 101001100212010021 |
4 | 20212020213301 |
5 | 243404331023 |
6 | 22151003441 |
7 | 3400542322 |
oct | 1046104761 |
9 | 331325107 |
10 | 144214513 |
11 | 74450553 |
12 | 40369581 |
13 | 23b54741 |
14 | 15220449 |
15 | c9da35d |
hex | 89889f1 |
144214513 has 4 divisors (see below), whose sum is σ = 145169728. Its totient is φ = 143259300.
The previous prime is 144214501. The next prime is 144214517. The reversal of 144214513 is 315412441.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-144214513 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (144214517) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477381 + ... + 477682.
It is an arithmetic number, because the mean of its divisors is an integer number (36292432).
Almost surely, 2144214513 is an apocalyptic number.
It is an amenable number.
144214513 is a deficient number, since it is larger than the sum of its proper divisors (955215).
144214513 is an equidigital number, since it uses as much as digits as its factorization.
144214513 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 955214.
The product of its digits is 1920, while the sum is 25.
The square root of 144214513 is about 12008.9347154525. The cubic root of 144214513 is about 524.4084196626.
Adding to 144214513 its reverse (315412441), we get a palindrome (459626954).
The spelling of 144214513 in words is "one hundred forty-four million, two hundred fourteen thousand, five hundred thirteen".
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