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144688912467 = 31142110414519
BaseRepresentation
bin1000011011000000100…
…0011001100001010011
3111211110121201022102220
42012300020121201103
54332310330144332
6150245201312123
713311345315021
oct2066010314123
9454417638386
10144688912467
11563a9134510
1224060035643
131084b140208
147008271711
153b6c6c8d2c
hex21b0219853

144688912467 has 16 divisors (see below), whose sum is σ = 210956517120. Its totient is φ = 87481951200.

The previous prime is 144688912457. The next prime is 144688912471. The reversal of 144688912467 is 764219886441.

It is not a de Polignac number, because 144688912467 - 211 = 144688910419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144688912467.

It is not an unprimeable number, because it can be changed into a prime (144688912457) 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, 5193367 + ... + 5221152.

It is an arithmetic number, because the mean of its divisors is an integer number (13184782320).

Almost surely, 2144688912467 is an apocalyptic number.

144688912467 is a deficient number, since it is larger than the sum of its proper divisors (66267604653).

144688912467 is a wasteful number, since it uses less digits than its factorization.

144688912467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10414954.

The product of its digits is 18579456, while the sum is 60.

The spelling of 144688912467 in words is "one hundred forty-four billion, six hundred eighty-eight million, nine hundred twelve thousand, four hundred sixty-seven".

Divisors: 1 3 11 33 421 1263 4631 13893 10414519 31243557 114559709 343679127 4384512499 13153537497 48229637489 144688912467