Base | Representation |
---|---|
bin | 10001001100110… |
… | …10000101001001 |
3 | 101001111111012212 |
4 | 20212122011021 |
5 | 243414123100 |
6 | 22152314505 |
7 | 3401260652 |
oct | 1046320511 |
9 | 331444185 |
10 | 144286025 |
11 | 7449a254 |
12 | 403a2a35 |
13 | 23b7b160 |
14 | 1523c529 |
15 | ca01635 |
hex | 899a149 |
144286025 has 24 divisors (see below), whose sum is σ = 194492760. Its totient is φ = 105546240.
The previous prime is 144286013. The next prime is 144286063. The reversal of 144286025 is 520682441.
It can be written as a sum of positive squares in 12 ways, for example, as 82065481 + 62220544 = 9059^2 + 7888^2 .
It is not a de Polignac number, because 144286025 - 26 = 144285961 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 144285982 and 144286000.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 33389 + ... + 37461.
It is an arithmetic number, because the mean of its divisors is an integer number (8103865).
Almost surely, 2144286025 is an apocalyptic number.
It is an amenable number.
144286025 is a deficient number, since it is larger than the sum of its proper divisors (50206735).
144286025 is a wasteful number, since it uses less digits than its factorization.
144286025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4205 (or 4200 counting only the distinct ones).
The product of its (nonzero) digits is 15360, while the sum is 32.
The square root of 144286025 is about 12011.9117962130. The cubic root of 144286025 is about 524.4950852304.
The spelling of 144286025 in words is "one hundred forty-four million, two hundred eighty-six thousand, twenty-five".
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