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144384693 = 3371677789
BaseRepresentation
bin10001001101100…
…10001010110101
3101001200111120020
420212302022311
5243430302233
622154355353
73402151425
oct1046621265
9331614506
10144384693
11745573a2
124042bb59
1323bb403b
1415266485
15ca209b3
hex89b22b5

144384693 has 16 divisors (see below), whose sum is σ = 198925440. Its totient is φ = 93082176.

The previous prime is 144384683. The next prime is 144384697. The reversal of 144384693 is 396483441.

It is not a de Polignac number, because 144384693 - 25 = 144384661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144384697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14643 + ... + 22431.

It is an arithmetic number, because the mean of its divisors is an integer number (12432840).

Almost surely, 2144384693 is an apocalyptic number.

It is an amenable number.

144384693 is a deficient number, since it is larger than the sum of its proper divisors (54540747).

144384693 is a wasteful number, since it uses less digits than its factorization.

144384693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7996.

The product of its digits is 248832, while the sum is 42.

The square root of 144384693 is about 12016.0181840741. The cubic root of 144384693 is about 524.6146142220.

The spelling of 144384693 in words is "one hundred forty-four million, three hundred eighty-four thousand, six hundred ninety-three".

Divisors: 1 3 37 111 167 501 6179 7789 18537 23367 288193 864579 1300763 3902289 48128231 144384693