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144145311 = 3157306041
BaseRepresentation
bin10001001011101…
…11101110011111
3101001020100012020
420211313232133
5243400122221
622145311223
73400133502
oct1045675637
9331210166
10144145311
1174403562
1240335513
1323b2c0ab
1415203139
15c9c4ac6
hex8977b9f

144145311 has 8 divisors (see below), whose sum is σ = 193418544. Its totient is φ = 95484480.

The previous prime is 144145297. The next prime is 144145333. The reversal of 144145311 is 113541441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144145311 - 25 = 144145279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144145361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152550 + ... + 153491.

It is an arithmetic number, because the mean of its divisors is an integer number (24177318).

Almost surely, 2144145311 is an apocalyptic number.

144145311 is a deficient number, since it is larger than the sum of its proper divisors (49273233).

144145311 is a wasteful number, since it uses less digits than its factorization.

144145311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306201.

The product of its digits is 960, while the sum is 24.

The square root of 144145311 is about 12006.0530983334. The cubic root of 144145311 is about 524.3245263084.

Adding to 144145311 its reverse (113541441), we get a palindrome (257686752).

The spelling of 144145311 in words is "one hundred forty-four million, one hundred forty-five thousand, three hundred eleven".

Divisors: 1 3 157 471 306041 918123 48048437 144145311