Base | Representation |
---|---|
bin | 10001001010110… |
… | …11100100111101 |
3 | 101001000111000221 |
4 | 20211123210331 |
5 | 243332430023 |
6 | 22143021341 |
7 | 3366143401 |
oct | 1045334475 |
9 | 331014027 |
10 | 144030013 |
11 | 74334976 |
12 | 4029a851 |
13 | 23abb77a |
14 | 151b3101 |
15 | c9a085d |
hex | 895b93d |
144030013 has 4 divisors (see below), whose sum is σ = 151610560. Its totient is φ = 136449468.
The previous prime is 144029987. The next prime is 144030041. The reversal of 144030013 is 310030441.
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, and also an emirpimes, since its reverse is a distinct semiprime: 310030441 = 7 ⋅44290063.
It is a cyclic number.
It is not a de Polignac number, because 144030013 - 25 = 144029981 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 (144030083) 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, 3790245 + ... + 3790282.
It is an arithmetic number, because the mean of its divisors is an integer number (37902640).
Almost surely, 2144030013 is an apocalyptic number.
It is an amenable number.
144030013 is a deficient number, since it is larger than the sum of its proper divisors (7580547).
144030013 is an equidigital number, since it uses as much as digits as its factorization.
144030013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7580546.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 144030013 is about 12001.2504765129. The cubic root of 144030013 is about 524.1846912712.
Adding to 144030013 its reverse (310030441), we get a palindrome (454060454).
The spelling of 144030013 in words is "one hundred forty-four million, thirty thousand, thirteen".
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