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144285609 = 3132284587
BaseRepresentation
bin10001001100110…
…01111110101001
3101001111110122110
420212121332221
5243414114414
622152312533
73401256516
oct1046317651
9331443573
10144285609
1174499a06
12403a2749
1323b7ac00
141523c30d
15ca01459
hex8999fa9

144285609 has 12 divisors (see below), whose sum is σ = 208318416. Its totient is φ = 88790832.

The previous prime is 144285599. The next prime is 144285611. The reversal of 144285609 is 906582441.

It is not a de Polignac number, because 144285609 - 25 = 144285577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (144285649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141787 + ... + 142800.

It is an arithmetic number, because the mean of its divisors is an integer number (17359868).

Almost surely, 2144285609 is an apocalyptic number.

It is an amenable number.

144285609 is a deficient number, since it is larger than the sum of its proper divisors (64032807).

144285609 is a wasteful number, since it uses less digits than its factorization.

144285609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284616 (or 284603 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 144285609 is about 12011.8944800560. The cubic root of 144285609 is about 524.4945811618.

The spelling of 144285609 in words is "one hundred forty-four million, two hundred eighty-five thousand, six hundred nine".

Divisors: 1 3 13 39 169 507 284587 853761 3699631 11098893 48095203 144285609