Base | Representation |
---|---|
bin | 10001001100001… |
… | …01011000000111 |
3 | 101001100011220001 |
4 | 20212011120013 |
5 | 243403414343 |
6 | 22150422131 |
7 | 3400455505 |
oct | 1046053007 |
9 | 331304801 |
10 | 144201223 |
11 | 74441571 |
12 | 40361947 |
13 | 23b4b68a |
14 | 15219675 |
15 | c9d644d |
hex | 8985607 |
144201223 has 12 divisors (see below), whose sum is σ = 149349640. Its totient is φ = 139216320.
The previous prime is 144201193. The next prime is 144201229. The reversal of 144201223 is 322102441.
It is not a de Polignac number, because 144201223 - 29 = 144200711 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 144201223.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144201229) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182836 + ... + 183622.
Almost surely, 2144201223 is an apocalyptic number.
144201223 is a deficient number, since it is larger than the sum of its proper divisors (5148417).
144201223 is an equidigital number, since it uses as much as digits as its factorization.
144201223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 978 (or 937 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 19.
The square root of 144201223 is about 12008.3813646969. The cubic root of 144201223 is about 524.3923103223.
Adding to 144201223 its reverse (322102441), we get a palindrome (466303664).
The spelling of 144201223 in words is "one hundred forty-four million, two hundred one thousand, two hundred twenty-three".
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