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144489017 = 1912772731
BaseRepresentation
bin10001001110010…
…11101000111001
3101001212210200002
420213023220321
5243442122032
622200522345
73403064531
oct1047135071
9331783602
10144489017
1174618812
12404803b5
1323c1c67a
14152924c1
15ca41862
hex89cba39

144489017 has 8 divisors (see below), whose sum is σ = 145823232. Its totient is φ = 143161200.

The previous prime is 144489011. The next prime is 144489041. The reversal of 144489017 is 710984441.

144489017 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 a de Polignac number, because none of the positive numbers 2k-144489017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144489011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51542 + ... + 54272.

It is an arithmetic number, because the mean of its divisors is an integer number (18227904).

Almost surely, 2144489017 is an apocalyptic number.

It is an amenable number.

144489017 is a deficient number, since it is larger than the sum of its proper divisors (1334215).

144489017 is a wasteful number, since it uses less digits than its factorization.

144489017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 144489017 is about 12020.3584389152. The cubic root of 144489017 is about 524.7409358276.

The spelling of 144489017 in words is "one hundred forty-four million, four hundred eighty-nine thousand, seventeen".

Divisors: 1 191 277 2731 52907 521621 756487 144489017