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144144523 = 831736681
BaseRepresentation
bin10001001011101…
…11100010001011
3101001020022010001
420211313202023
5243400111043
622145303431
73400131265
oct1045674213
9331208101
10144144523
1174402a06
1240334b77
1323b2b923
1415202b35
15c9c474d
hex897788b

144144523 has 4 divisors (see below), whose sum is σ = 145881288. Its totient is φ = 142407760.

The previous prime is 144144521. The next prime is 144144541. The reversal of 144144523 is 325441441.

144144523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144144523 - 21 = 144144521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144144491 and 144144500.

It is not an unprimeable number, because it can be changed into a prime (144144521) 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, 868258 + ... + 868423.

It is an arithmetic number, because the mean of its divisors is an integer number (36470322).

Almost surely, 2144144523 is an apocalyptic number.

144144523 is a deficient number, since it is larger than the sum of its proper divisors (1736765).

144144523 is an equidigital number, since it uses as much as digits as its factorization.

144144523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736764.

The product of its digits is 7680, while the sum is 28.

The square root of 144144523 is about 12006.0202815088. The cubic root of 144144523 is about 524.3235708641.

Adding to 144144523 its reverse (325441441), we get a palindrome (469585964).

The spelling of 144144523 in words is "one hundred forty-four million, one hundred forty-four thousand, five hundred twenty-three".

Divisors: 1 83 1736681 144144523