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144044251 = 1311080327
BaseRepresentation
bin10001001010111…
…11000011011011
3101001001012120021
420211133003123
5243333404001
622143211311
73366233041
oct1045370333
9331035507
10144044251
117434463a
12402a6b37
1323ac50b0
14151b8391
15c9a4ba1
hex895f0db

144044251 has 4 divisors (see below), whose sum is σ = 155124592. Its totient is φ = 132963912.

The previous prime is 144044227. The next prime is 144044261. The reversal of 144044251 is 152440441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152440441 = 571266971.

It is a cyclic number.

It is not a de Polignac number, because 144044251 - 27 = 144044123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144044261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5540151 + ... + 5540176.

It is an arithmetic number, because the mean of its divisors is an integer number (38781148).

Almost surely, 2144044251 is an apocalyptic number.

144044251 is a deficient number, since it is larger than the sum of its proper divisors (11080341).

144044251 is a wasteful number, since it uses less digits than its factorization.

144044251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11080340.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 144044251 is about 12001.8436500398. The cubic root of 144044251 is about 524.2019633558.

Adding to 144044251 its reverse (152440441), we get a palindrome (296484692).

The spelling of 144044251 in words is "one hundred forty-four million, forty-four thousand, two hundred fifty-one".

Divisors: 1 13 11080327 144044251