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144113111 = 175981929
BaseRepresentation
bin10001001011011…
…11110111010111
3101001011201000122
420211233313113
5243343104421
622144502155
73366640562
oct1045576727
9331151018
10144113111
117439134a
124031a95b
1323b1a53c
14151d54d9
15c9ba2ab
hex896fdd7

144113111 has 4 divisors (see below), whose sum is σ = 144196800. Its totient is φ = 144029424.

The previous prime is 144113107. The next prime is 144113117. The reversal of 144113111 is 111311441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111311441 = 113985057.

It is a cyclic number.

It is not a de Polignac number, because 144113111 - 22 = 144113107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144113111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144113117) 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, 39206 + ... + 42723.

It is an arithmetic number, because the mean of its divisors is an integer number (36049200).

Almost surely, 2144113111 is an apocalyptic number.

144113111 is a deficient number, since it is larger than the sum of its proper divisors (83689).

144113111 is an equidigital number, since it uses as much as digits as its factorization.

144113111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83688.

The product of its digits is 48, while the sum is 17.

The square root of 144113111 is about 12004.7120331976. The cubic root of 144113111 is about 524.2854812019.

Adding to 144113111 its reverse (111311441), we get a palindrome (255424552).

The spelling of 144113111 in words is "one hundred forty-four million, one hundred thirteen thousand, one hundred eleven".

Divisors: 1 1759 81929 144113111