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1112243111 = 72731392237
BaseRepresentation
bin100001001001011…
…0111101110100111
32212111212210201022
41002102313232213
54234213234421
6302211121355
736363624200
oct10222675647
92774783638
101112243111
11520917791
122705a325b
13149579525
14a7a085a7
15679a37ab
hex424b7ba7

1112243111 has 24 divisors (see below), whose sum is σ = 1321583760. Its totient is φ = 933109632.

The previous prime is 1112243101. The next prime is 1112243113. The reversal of 1112243111 is 1113422111.

It is not a de Polignac number, because 1112243111 - 214 = 1112226727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1112243111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112243113) 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 23 ways as a sum of consecutive naturals, for example, 496085 + ... + 498321.

It is an arithmetic number, because the mean of its divisors is an integer number (55065990).

Almost surely, 21112243111 is an apocalyptic number.

1112243111 is a deficient number, since it is larger than the sum of its proper divisors (209340649).

1112243111 is a wasteful number, since it uses less digits than its factorization.

1112243111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463 (or 2456 counting only the distinct ones).

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

The square root of 1112243111 is about 33350.3090090632. The cubic root of 1112243111 is about 1036.0957879536.

Adding to 1112243111 its reverse (1113422111), we get a palindrome (2225665222).

The spelling of 1112243111 in words is "one billion, one hundred twelve million, two hundred forty-three thousand, one hundred eleven".

Divisors: 1 7 49 73 139 511 973 2237 3577 6811 10147 15659 71029 109613 163301 310943 497203 1143107 2176601 8001749 15236207 22698839 158891873 1112243111