Base | Representation |
---|---|
bin | 10001001011101… |
… | …11101011111000 |
3 | 101001020022222001 |
4 | 20211313223320 |
5 | 243400121034 |
6 | 22145310344 |
7 | 3400133143 |
oct | 1045675370 |
9 | 331208861 |
10 | 144145144 |
11 | 74403420 |
12 | 403353b4 |
13 | 23b2bcb0 |
14 | 1520305a |
15 | c9c4a14 |
hex | 8977af8 |
144145144 has 32 divisors (see below), whose sum is σ = 317525040. Its totient is φ = 60480000.
The previous prime is 144145139. The next prime is 144145147. The reversal of 144145144 is 441541441.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144145147) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61857 + ... + 64144.
Almost surely, 2144145144 is an apocalyptic number.
It is an amenable number.
144145144 is an abundant number, since it is smaller than the sum of its proper divisors (173379896).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144145144 is a wasteful number, since it uses less digits than its factorization.
144145144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 126031 (or 126027 counting only the distinct ones).
The product of its digits is 5120, while the sum is 28.
The square root of 144145144 is about 12006.0461435062. The cubic root of 144145144 is about 524.3243238224.
Adding to 144145144 its reverse (441541441), we get a palindrome (585686585).
The spelling of 144145144 in words is "one hundred forty-four million, one hundred forty-five thousand, one hundred forty-four".
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