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1112023223 = 1783623681
BaseRepresentation
bin100001001001000…
…0010000010110111
32212111110122002022
41002102002002313
54234134220343
6302202303355
736362020133
oct10222020267
92774418068
101112023223
11520787563
122704b7b5b
1314950040c
14a798c3c3
156795d568
hex424820b7

1112023223 has 4 divisors (see below), whose sum is σ = 1112648688. Its totient is φ = 1111397760.

The previous prime is 1112023217. The next prime is 1112023247. The reversal of 1112023223 is 3223202111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3223202111 = 3257989623.

It is a cyclic number.

It is not a de Polignac number, because 1112023223 - 210 = 1112022199 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 (1112020223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310058 + ... + 313623.

It is an arithmetic number, because the mean of its divisors is an integer number (278162172).

Almost surely, 21112023223 is an apocalyptic number.

1112023223 is a deficient number, since it is larger than the sum of its proper divisors (625465).

1112023223 is an equidigital number, since it uses as much as digits as its factorization.

1112023223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625464.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1112023223 is about 33347.0122049937. The cubic root of 1112023223 is about 1036.0275055060.

Adding to 1112023223 its reverse (3223202111), we get a palindrome (4335225334).

It can be divided in two parts, 11120 and 23223, that added together give a palindrome (34343).

The spelling of 1112023223 in words is "one billion, one hundred twelve million, twenty-three thousand, two hundred twenty-three".

Divisors: 1 1783 623681 1112023223