Base | Representation |
---|---|
bin | 10001001011101… |
… | …11101101100110 |
3 | 101001020100010010 |
4 | 20211313231212 |
5 | 243400122004 |
6 | 22145311050 |
7 | 3400133361 |
oct | 1045675546 |
9 | 331210103 |
10 | 144145254 |
11 | 74403510 |
12 | 40335486 |
13 | 23b2c066 |
14 | 152030d8 |
15 | c9c4a89 |
hex | 8977b66 |
144145254 has 64 divisors (see below), whose sum is σ = 328458240. Its totient is φ = 41771520.
The previous prime is 144145241. The next prime is 144145259. The reversal of 144145254 is 452541441.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144145259) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242782 + ... + 243374.
It is an arithmetic number, because the mean of its divisors is an integer number (5132160).
Almost surely, 2144145254 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 144145254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164229120).
144145254 is an abundant number, since it is smaller than the sum of its proper divisors (184312986).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144145254 is a wasteful number, since it uses less digits than its factorization.
144145254 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 765.
The product of its digits is 12800, while the sum is 30.
The square root of 144145254 is about 12006.0507245305. The cubic root of 144145254 is about 524.3244571964.
Adding to 144145254 its reverse (452541441), we get a palindrome (596686695).
The spelling of 144145254 in words is "one hundred forty-four million, one hundred forty-five thousand, two hundred fifty-four".
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