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144015 = 359601
BaseRepresentation
bin100011001010001111
321022112220
4203022033
514102030
63030423
71136604
oct431217
9238486
10144015
1199223
126b413
1350721
143a6ab
152ca10
hex2328f

144015 has 8 divisors (see below), whose sum is σ = 230448. Its totient is φ = 76800.

The previous prime is 144013. The next prime is 144031. The reversal of 144015 is 510441.

144015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 144015 - 21 = 144013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 9601 = 144015 / (1 + 4 + 4 + 0 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 143985 and 144003.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144015.

It is not an unprimeable number, because it can be changed into a prime (144013) 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, 4786 + ... + 4815.

It is an arithmetic number, because the mean of its divisors is an integer number (28806).

2144015 is an apocalyptic number.

144015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144015 is a deficient number, since it is larger than the sum of its proper divisors (86433).

144015 is an equidigital number, since it uses as much as digits as its factorization.

144015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9609.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 144015 is about 379.4930829409. The cubic root of 144015 is about 52.4166477803.

Adding to 144015 its reverse (510441), we get a palindrome (654456).

The spelling of 144015 in words is "one hundred forty-four thousand, fifteen".

Divisors: 1 3 5 15 9601 28803 48005 144015