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144334141 = 720619163
BaseRepresentation
bin10001001101001…
…01110100111101
3101001120221012221
420212211310331
5243422143031
622153325341
73401551150
oct1046456475
9331527187
10144334141
1174522416
1240406851
1323b97023
1415251c97
15ca10a11
hex89a5d3d

144334141 has 4 divisors (see below), whose sum is σ = 164953312. Its totient is φ = 123714972.

The previous prime is 144334139. The next prime is 144334181. The reversal of 144334141 is 141433441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141433441 = 612318581.

It is a cyclic number.

It is not a de Polignac number, because 144334141 - 21 = 144334139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144334111) 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, 10309575 + ... + 10309588.

It is an arithmetic number, because the mean of its divisors is an integer number (41238328).

Almost surely, 2144334141 is an apocalyptic number.

It is an amenable number.

144334141 is a deficient number, since it is larger than the sum of its proper divisors (20619171).

144334141 is an equidigital number, since it uses as much as digits as its factorization.

144334141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20619170.

The product of its digits is 2304, while the sum is 25.

The square root of 144334141 is about 12013.9144744750. The cubic root of 144334141 is about 524.5533810143.

Adding to 144334141 its reverse (141433441), we get a palindrome (285767582).

The spelling of 144334141 in words is "one hundred forty-four million, three hundred thirty-four thousand, one hundred forty-one".

Divisors: 1 7 20619163 144334141