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144442123313 = 1771402729717
BaseRepresentation
bin1000011010000101101…
…0111110010000110001
3111210211102100010100212
42012201122332100301
54331304140421223
6150204503553505
713302260535065
oct2064132762061
9453742303325
10144442123313
11562918a4134
1223bb145b895
131080bc83127
146dc358daa5
153b55bcb278
hex21a16be431

144442123313 has 16 divisors (see below), whose sum is σ = 155136518784. Its totient is φ = 133993009920.

The previous prime is 144442123289. The next prime is 144442123363. The reversal of 144442123313 is 313321244441.

It is not a de Polignac number, because 144442123313 - 228 = 144173687857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144442123313.

It is not an unprimeable number, because it can be changed into a prime (144442123363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4845731 + ... + 4875447.

It is an arithmetic number, because the mean of its divisors is an integer number (9696032424).

Almost surely, 2144442123313 is an apocalyptic number.

It is an amenable number.

144442123313 is a deficient number, since it is larger than the sum of its proper divisors (10694395471).

144442123313 is a wasteful number, since it uses less digits than its factorization.

144442123313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33832.

The product of its digits is 27648, while the sum is 32.

Adding to 144442123313 its reverse (313321244441), we get a palindrome (457763367754).

The spelling of 144442123313 in words is "one hundred forty-four billion, four hundred forty-two million, one hundred twenty-three thousand, three hundred thirteen".

Divisors: 1 17 71 1207 4027 29717 68459 285917 505189 2109907 4860589 35868419 119670359 2034396103 8496595489 144442123313