Base | Representation |
---|---|
bin | 10001001110110… |
… | …01000111100110 |
3 | 101001222121102000 |
4 | 20213121013212 |
5 | 244000403410 |
6 | 22202030130 |
7 | 3403414515 |
oct | 1047310746 |
9 | 331877360 |
10 | 144544230 |
11 | 74656246 |
12 | 404a8346 |
13 | 23c3b83c |
14 | 152a867c |
15 | ca52dc0 |
hex | 89d91e6 |
144544230 has 32 divisors (see below), whose sum is σ = 385452000. Its totient is φ = 38545056.
The previous prime is 144544189. The next prime is 144544243. The reversal of 144544230 is 32445441.
It is a happy number.
144544230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 144544194 and 144544203.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267405 + ... + 267944.
It is an arithmetic number, because the mean of its divisors is an integer number (12045375).
Almost surely, 2144544230 is an apocalyptic number.
144544230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
144544230 is an abundant number, since it is smaller than the sum of its proper divisors (240907770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144544230 is a wasteful number, since it uses less digits than its factorization.
144544230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 535365 (or 535359 counting only the distinct ones).
The product of its (nonzero) digits is 7680, while the sum is 27.
The square root of 144544230 is about 12022.6548648791. The cubic root of 144544230 is about 524.8077663551.
Adding to 144544230 its reverse (32445441), we get a palindrome (176989671).
The spelling of 144544230 in words is "one hundred forty-four million, five hundred forty-four thousand, two hundred thirty".
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