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144007 = 1743197
BaseRepresentation
bin100011001010000111
321022112121
4203022013
514102012
63030411
71136563
oct431207
9238477
10144007
1199216
126b407
1350716
143a6a3
152ca07
hex23287

144007 has 8 divisors (see below), whose sum is σ = 156816. Its totient is φ = 131712.

The previous prime is 143999. The next prime is 144013. The reversal of 144007 is 700441.

It is a happy number.

144007 is nontrivially palindromic in base 14.

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

It is a cyclic number.

It is not a de Polignac number, because 144007 - 23 = 143999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144037) 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, 633 + ... + 829.

It is an arithmetic number, because the mean of its divisors is an integer number (19602).

2144007 is an apocalyptic number.

144007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

144007 is a deficient number, since it is larger than the sum of its proper divisors (12809).

144007 is a wasteful number, since it uses less digits than its factorization.

144007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 144007 is about 379.4825424180. The cubic root of 144007 is about 52.4156771848.

Adding to 144007 its reverse (700441), we get a palindrome (844448).

The spelling of 144007 in words is "one hundred forty-four thousand, seven", and thus it is an iban number.

Divisors: 1 17 43 197 731 3349 8471 144007