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144218 = 272109
BaseRepresentation
bin100011001101011010
321022211102
4203031122
514103333
63031402
71140314
oct431532
9238742
10144218
1199398
126b562
1350849
143a7b4
152cae8
hex2335a

144218 has 4 divisors (see below), whose sum is σ = 216330. Its totient is φ = 72108.

The previous prime is 144203. The next prime is 144223. The reversal of 144218 is 812441.

144218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 117649 + 26569 = 343^2 + 163^2 .

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 144218.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36053 + ... + 36056.

2144218 is an apocalyptic number.

144218 is a deficient number, since it is larger than the sum of its proper divisors (72112).

144218 is an equidigital number, since it uses as much as digits as its factorization.

144218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72111.

The product of its digits is 256, while the sum is 20.

The square root of 144218 is about 379.7604508108. The cubic root of 144218 is about 52.4412646231.

Adding to 144218 its reverse (812441), we get a palindrome (956659).

The spelling of 144218 in words is "one hundred forty-four thousand, two hundred eighteen".

Divisors: 1 2 72109 144218