Base | Representation |
---|---|
bin | 10001010000111… |
… | …01110100000101 |
3 | 101002111220101022 |
4 | 20220131310011 |
5 | 244033404410 |
6 | 22212040525 |
7 | 3405666041 |
oct | 1050356405 |
9 | 332456338 |
10 | 144825605 |
11 | 74828691 |
12 | 40603145 |
13 | 24009932 |
14 | 1533d021 |
15 | caab455 |
hex | 8a1dd05 |
144825605 has 8 divisors (see below), whose sum is σ = 174060792. Its totient is φ = 115680448.
The previous prime is 144825599. The next prime is 144825607. The reversal of 144825605 is 506528441.
It can be written as a sum of positive squares in 4 ways, for example, as 27363361 + 117462244 = 5231^2 + 10838^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 144825605 - 214 = 144809221 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144825607) 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, 18914 + ... + 25443.
It is an arithmetic number, because the mean of its divisors is an integer number (21757599).
Almost surely, 2144825605 is an apocalyptic number.
It is an amenable number.
144825605 is a deficient number, since it is larger than the sum of its proper divisors (29235187).
144825605 is an equidigital number, since it uses as much as digits as its factorization.
144825605 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45015.
The product of its (nonzero) digits is 38400, while the sum is 35.
The square root of 144825605 is about 12034.3510419133. The cubic root of 144825605 is about 525.1480821885.
The spelling of 144825605 in words is "one hundred forty-four million, eight hundred twenty-five thousand, six hundred five".
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