Base | Representation |
---|---|
bin | 10001001100010… |
… | …00010011100111 |
3 | 101001100210100111 |
4 | 20212020103213 |
5 | 243404310343 |
6 | 22150553451 |
7 | 3400535500 |
oct | 1046102347 |
9 | 331323314 |
10 | 144213223 |
11 | 7444a590 |
12 | 40368887 |
13 | 23b53c8b |
14 | 1521dba7 |
15 | c9d9c9d |
hex | 89884e7 |
144213223 has 12 divisors (see below), whose sum is σ = 183009672. Its totient is φ = 112373520.
The previous prime is 144213217. The next prime is 144213229. The reversal of 144213223 is 322312441.
It is an interprime number because it is at equal distance from previous prime (144213217) and next prime (144213229).
It is not a de Polignac number, because 144213223 - 25 = 144213191 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 144213194 and 144213203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144213229) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133240 + ... + 134317.
It is an arithmetic number, because the mean of its divisors is an integer number (15250806).
Almost surely, 2144213223 is an apocalyptic number.
144213223 is a deficient number, since it is larger than the sum of its proper divisors (38796449).
144213223 is a wasteful number, since it uses less digits than its factorization.
144213223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 267582 (or 267575 counting only the distinct ones).
The product of its digits is 1152, while the sum is 22.
The square root of 144213223 is about 12008.8810053227. The cubic root of 144213223 is about 524.4068560454.
Adding to 144213223 its reverse (322312441), we get a palindrome (466525664).
The spelling of 144213223 in words is "one hundred forty-four million, two hundred thirteen thousand, two hundred twenty-three".
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