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144404134231 = 722990083677
BaseRepresentation
bin1000011001111100101…
…0000011100101010111
3111210201202212002010211
42012133022003211113
54331214424243411
6150201025430251
713301316613540
oct2063712034527
9453652762124
10144404134231
11562724073a5
1223ba079b387
1310804141996
146dbc5014c7
153b526c5221
hex219f283957

144404134231 has 8 divisors (see below), whose sum is σ = 165753967520. Its totient is φ = 123234468768.

The previous prime is 144404134201. The next prime is 144404134247. The reversal of 144404134231 is 132431404441.

144404134231 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 a cyclic number.

It is not a de Polignac number, because 144404134231 - 213 = 144404126039 is a prime.

It is a super-2 number, since 2×1444041342312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144404134193 and 144404134202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144404134201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45040236 + ... + 45043441.

It is an arithmetic number, because the mean of its divisors is an integer number (20719245940).

Almost surely, 2144404134231 is an apocalyptic number.

144404134231 is a deficient number, since it is larger than the sum of its proper divisors (21349833289).

144404134231 is an equidigital number, since it uses as much as digits as its factorization.

144404134231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90083913.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 144404134231 its reverse (132431404441), we get a palindrome (276835538672).

The spelling of 144404134231 in words is "one hundred forty-four billion, four hundred four million, one hundred thirty-four thousand, two hundred thirty-one".

Divisors: 1 7 229 1603 90083677 630585739 20629162033 144404134231