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144049 = 236263
BaseRepresentation
bin100011001010110001
321022121011
4203022301
514102144
63030521
71136653
oct431261
9238534
10144049
1199254
126b441
1350749
143a6d3
152ca34
hex232b1

144049 has 4 divisors (see below), whose sum is σ = 150336. Its totient is φ = 137764.

The previous prime is 144037. The next prime is 144061. The reversal of 144049 is 940441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 940441 = 2932429.

It is an interprime number because it is at equal distance from previous prime (144037) and next prime (144061).

It is a cyclic number.

It is not a de Polignac number, because 144049 - 29 = 143537 is a prime.

It is a super-2 number, since 2×1440492 = 41500228802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144349) 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, 3109 + ... + 3154.

It is an arithmetic number, because the mean of its divisors is an integer number (37584).

2144049 is an apocalyptic number.

It is an amenable number.

144049 is a deficient number, since it is larger than the sum of its proper divisors (6287).

144049 is an equidigital number, since it uses as much as digits as its factorization.

144049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 144049 is about 379.5378768977. The cubic root of 144049 is about 52.4207724104.

The spelling of 144049 in words is "one hundred forty-four thousand, forty-nine".

Divisors: 1 23 6263 144049