Search a number
-
+
144243271 is a prime number
BaseRepresentation
bin10001001100011…
…11101001000111
3101001102022120101
420212033221013
5243411241041
622151344531
73401022214
oct1046175107
9331368511
10144243271
1174470117
1240382147
1323b64863
141522ab0b
15c9e3b31
hex898fa47

144243271 has 2 divisors, whose sum is σ = 144243272. Its totient is φ = 144243270.

The previous prime is 144243247. The next prime is 144243299. The reversal of 144243271 is 172342441.

144243271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (144243299) can be obtained adding 144243271 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (172342441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144243271 is a prime.

It is a super-2 number, since 2×1442432712 = 41612242457558882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144243241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72121635 + 72121636.

It is an arithmetic number, because the mean of its divisors is an integer number (72121636).

Almost surely, 2144243271 is an apocalyptic number.

144243271 is a deficient number, since it is larger than the sum of its proper divisors (1).

144243271 is an equidigital number, since it uses as much as digits as its factorization.

144243271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 28.

The square root of 144243271 is about 12010.1320142620. The cubic root of 144243271 is about 524.4432749965.

The spelling of 144243271 in words is "one hundred forty-four million, two hundred forty-three thousand, two hundred seventy-one".