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144352163 = 236276181
BaseRepresentation
bin10001001101010…
…10001110100011
3101001121211221102
420212222032203
5243423232123
622153545015
73401654534
oct1046521643
9331554842
10144352163
1174534a0a
124041516b
1323ba22a7
141525868b
15ca16028
hex89aa3a3

144352163 has 4 divisors (see below), whose sum is σ = 150628368. Its totient is φ = 138075960.

The previous prime is 144352123. The next prime is 144352249. The reversal of 144352163 is 361253441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361253441 = 1919013339.

It is a cyclic number.

It is not a de Polignac number, because 144352163 - 26 = 144352099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144352123) 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 3 ways as a sum of consecutive naturals, for example, 3138068 + ... + 3138113.

It is an arithmetic number, because the mean of its divisors is an integer number (37657092).

Almost surely, 2144352163 is an apocalyptic number.

144352163 is a deficient number, since it is larger than the sum of its proper divisors (6276205).

144352163 is an equidigital number, since it uses as much as digits as its factorization.

144352163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6276204.

The product of its digits is 8640, while the sum is 29.

The square root of 144352163 is about 12014.6644980207. The cubic root of 144352163 is about 524.5752125494.

The spelling of 144352163 in words is "one hundred forty-four million, three hundred fifty-two thousand, one hundred sixty-three".

Divisors: 1 23 6276181 144352163