Base | Representation |
---|---|
bin | 10001001100010… |
… | …10011101000111 |
3 | 101001101020102102 |
4 | 20212022131013 |
5 | 243410101043 |
6 | 22151102315 |
7 | 3400603241 |
oct | 1046123507 |
9 | 331336372 |
10 | 144222023 |
11 | 74456160 |
12 | 4037199b |
13 | 23b57c9a |
14 | 15223091 |
15 | c9dc6b8 |
hex | 898a747 |
144222023 has 4 divisors (see below), whose sum is σ = 157333128. Its totient is φ = 131110920.
The previous prime is 144222011. The next prime is 144222031. The reversal of 144222023 is 320222441.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 144222023 - 28 = 144221767 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 144221986 and 144222004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144222083) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6555536 + ... + 6555557.
It is an arithmetic number, because the mean of its divisors is an integer number (39333282).
Almost surely, 2144222023 is an apocalyptic number.
144222023 is a deficient number, since it is larger than the sum of its proper divisors (13111105).
144222023 is a wasteful number, since it uses less digits than its factorization.
144222023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13111104.
The product of its (nonzero) digits is 768, while the sum is 20.
The square root of 144222023 is about 12009.2473952367. The cubic root of 144222023 is about 524.4175223962.
Adding to 144222023 its reverse (320222441), we get a palindrome (464444464).
The spelling of 144222023 in words is "one hundred forty-four million, two hundred twenty-two thousand, twenty-three".
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