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144404311 = 29107173269
BaseRepresentation
bin10001001101101…
…10111101010111
3101001201111110211
420212312331113
5243431414221
622155030251
73402262552
oct1046667527
9331644424
10144404311
1174570107
124043b387
1323bbcc4c
141526d699
15ca266e1
hex89b6f57

144404311 has 16 divisors (see below), whose sum is σ = 152215200. Its totient is φ = 136812928.

The previous prime is 144404251. The next prime is 144404317. The reversal of 144404311 is 113404441.

It is a cyclic number.

It is not a de Polignac number, because 144404311 - 29 = 144403799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144404317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536685 + ... + 536953.

It is an arithmetic number, because the mean of its divisors is an integer number (9513450).

Almost surely, 2144404311 is an apocalyptic number.

144404311 is a deficient number, since it is larger than the sum of its proper divisors (7810889).

144404311 is a wasteful number, since it uses less digits than its factorization.

144404311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 144404311 is about 12016.8344833404. The cubic root of 144404311 is about 524.6383734889.

Adding to 144404311 its reverse (113404441), we get a palindrome (257808752).

The spelling of 144404311 in words is "one hundred forty-four million, four hundred four thousand, three hundred eleven".

Divisors: 1 29 107 173 269 3103 5017 7801 18511 28783 46537 536819 834707 1349573 4979459 144404311