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144335311 = 1069135019
BaseRepresentation
bin10001001101001…
…10000111001111
3101001120222211021
420212212013033
5243422212221
622153335011
73401554441
oct1046460717
9331528737
10144335311
117452328a
1240407467
1323b97713
1415252491
15ca11041
hex89a61cf

144335311 has 4 divisors (see below), whose sum is σ = 144471400. Its totient is φ = 144199224.

The previous prime is 144335309. The next prime is 144335341. The reversal of 144335311 is 113533441.

144335311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 144335311 - 21 = 144335309 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 (144335341) 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, 66441 + ... + 68578.

It is an arithmetic number, because the mean of its divisors is an integer number (36117850).

Almost surely, 2144335311 is an apocalyptic number.

144335311 is a deficient number, since it is larger than the sum of its proper divisors (136089).

144335311 is a wasteful number, since it uses less digits than its factorization.

144335311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136088.

The product of its digits is 2160, while the sum is 25.

The square root of 144335311 is about 12013.9631679142. The cubic root of 144335311 is about 524.5547983869.

Adding to 144335311 its reverse (113533441), we get a palindrome (257868752).

The spelling of 144335311 in words is "one hundred forty-four million, three hundred thirty-five thousand, three hundred eleven".

Divisors: 1 1069 135019 144335311