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144349159 = 178491127
BaseRepresentation
bin10001001101010…
…01011111100111
3101001121200211011
420212221133213
5243423133114
622153523051
73401643013
oct1046513747
9331550734
10144349159
1174532729
1240413487
1323ba0b06
1415257543
15ca151c4
hex89a97e7

144349159 has 4 divisors (see below), whose sum is σ = 152840304. Its totient is φ = 135858016.

The previous prime is 144349123. The next prime is 144349171. The reversal of 144349159 is 951943441.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 144349159 - 29 = 144348647 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144349199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4245547 + ... + 4245580.

It is an arithmetic number, because the mean of its divisors is an integer number (38210076).

Almost surely, 2144349159 is an apocalyptic number.

144349159 is a deficient number, since it is larger than the sum of its proper divisors (8491145).

144349159 is an equidigital number, since it uses as much as digits as its factorization.

144349159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8491144.

The product of its digits is 77760, while the sum is 40.

The square root of 144349159 is about 12014.5394834758. The cubic root of 144349159 is about 524.5715736826.

The spelling of 144349159 in words is "one hundred forty-four million, three hundred forty-nine thousand, one hundred fifty-nine".

Divisors: 1 17 8491127 144349159