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1224104111 = 11243108877
BaseRepresentation
bin100100011110110…
…0101100010101111
310011022100221011022
41020331211202233
510001332312421
6321244444355
742222466436
oct11075454257
93138327138
101224104111
11578a7a59a
122a1b496bb
131667b3979
14b880611d
15726ec7ab
hex48f658af

1224104111 has 4 divisors (see below), whose sum is σ = 1224224232. Its totient is φ = 1223983992.

The previous prime is 1224104071. The next prime is 1224104129. The reversal of 1224104111 is 1114014221.

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 1224104111 - 214 = 1224087727 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 1224104111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224104191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43196 + ... + 65681.

It is an arithmetic number, because the mean of its divisors is an integer number (306056058).

Almost surely, 21224104111 is an apocalyptic number.

1224104111 is a deficient number, since it is larger than the sum of its proper divisors (120121).

1224104111 is a wasteful number, since it uses less digits than its factorization.

1224104111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120120.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1224104111 is about 34987.1992448667. The cubic root of 1224104111 is about 1069.7265761315.

Adding to 1224104111 its reverse (1114014221), we get a palindrome (2338118332).

The spelling of 1224104111 in words is "one billion, two hundred twenty-four million, one hundred four thousand, one hundred eleven".

Divisors: 1 11243 108877 1224104111