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1112223889 = 7158889127
BaseRepresentation
bin100001001001011…
…0011000010010001
32212111211211100101
41002102303002101
54234212131024
6302210452401
736363514150
oct10222630221
92774754311
101112223889
115209042a7
12270594101
1314957085a
14a7a01597
156799cc44
hex424b3091

1112223889 has 4 divisors (see below), whose sum is σ = 1271113024. Its totient is φ = 953334756.

The previous prime is 1112223887. The next prime is 1112223899. The reversal of 1112223889 is 9883222111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1112223889 - 21 = 1112223887 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1112223887) 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, 79444557 + ... + 79444570.

It is an arithmetic number, because the mean of its divisors is an integer number (317778256).

Almost surely, 21112223889 is an apocalyptic number.

It is an amenable number.

1112223889 is a deficient number, since it is larger than the sum of its proper divisors (158889135).

1112223889 is an equidigital number, since it uses as much as digits as its factorization.

1112223889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158889134.

The product of its digits is 13824, while the sum is 37.

The square root of 1112223889 is about 33350.0208245812. The cubic root of 1112223889 is about 1036.0898192501.

The spelling of 1112223889 in words is "one billion, one hundred twelve million, two hundred twenty-three thousand, eight hundred eighty-nine".

Divisors: 1 7 158889127 1112223889