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144304 = 2429311
BaseRepresentation
bin100011001110110000
321022221121
4203032300
514104204
63032024
71140466
oct431660
9238847
10144304
1199466
126b614
13508b4
143a836
152cb54
hex233b0

144304 has 20 divisors (see below), whose sum is σ = 290160. Its totient is φ = 69440.

The previous prime is 144299. The next prime is 144307. The reversal of 144304 is 403441.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (144307) by changing a digit.

144304 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309 + ... + 619.

It is an arithmetic number, because the mean of its divisors is an integer number (14508).

2144304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145080).

144304 is an abundant number, since it is smaller than the sum of its proper divisors (145856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144304 is a wasteful number, since it uses less digits than its factorization.

144304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 144304 is about 379.8736632092. The cubic root of 144304 is about 52.4516864673.

Adding to 144304 its reverse (403441), we get a palindrome (547745).

The spelling of 144304 in words is "one hundred forty-four thousand, three hundred four", and thus it is an iban number.

Divisors: 1 2 4 8 16 29 58 116 232 311 464 622 1244 2488 4976 9019 18038 36076 72152 144304