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144485 = 5113771
BaseRepresentation
bin100011010001100101
321100012022
4203101211
514110420
63032525
71141145
oct432145
9240168
10144485
1199610
126b745
13509c3
143a925
152cc25
hex23465

144485 has 16 divisors (see below), whose sum is σ = 196992. Its totient is φ = 100800.

The previous prime is 144481. The next prime is 144497. The reversal of 144485 is 584441.

It is not a de Polignac number, because 144485 - 22 = 144481 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2000 + ... + 2070.

It is an arithmetic number, because the mean of its divisors is an integer number (12312).

2144485 is an apocalyptic number.

It is an amenable number.

144485 is a deficient number, since it is larger than the sum of its proper divisors (52507).

144485 is a wasteful number, since it uses less digits than its factorization.

144485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124.

The product of its digits is 2560, while the sum is 26.

The square root of 144485 is about 380.1118256513. Note that the first 3 decimals coincide. The cubic root of 144485 is about 52.4736072935.

The spelling of 144485 in words is "one hundred forty-four thousand, four hundred eighty-five".

Divisors: 1 5 11 37 55 71 185 355 407 781 2035 2627 3905 13135 28897 144485