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144202 = 272101
BaseRepresentation
bin100011001101001010
321022210211
4203031022
514103302
63031334
71140262
oct431512
9238724
10144202
1199383
126b54a
1350836
143a7a2
152cad7
hex2334a

144202 has 4 divisors (see below), whose sum is σ = 216306. Its totient is φ = 72100.

The previous prime is 144173. The next prime is 144203. The reversal of 144202 is 202441.

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., 137641 + 6561 = 371^2 + 81^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (144203) by changing a digit.

144202 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 as a sum of consecutive naturals, namely, 36049 + ... + 36052.

2144202 is an apocalyptic number.

144202 is a deficient number, since it is larger than the sum of its proper divisors (72104).

144202 is an equidigital number, since it uses as much as digits as its factorization.

144202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72103.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 144202 is about 379.7393843151. The cubic root of 144202 is about 52.4393252182.

Adding to 144202 its reverse (202441), we get a palindrome (346643).

The spelling of 144202 in words is "one hundred forty-four thousand, two hundred two", and thus it is an iban number.

Divisors: 1 2 72101 144202