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112243969 = 181161979
BaseRepresentation
bin1101011000010…
…11010100000001
321211012120210001
412230023110001
5212213301334
615045440001
72532025615
oct654132401
9254176701
10112243969
11583a4612
1231710001
131a33c866
1410c9b345
159cc2714
hex6b0b501

112243969 has 4 divisors (see below), whose sum is σ = 112307760. Its totient is φ = 112180180.

The previous prime is 112243921. The next prime is 112243987. The reversal of 112243969 is 969342211.

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 112243969 - 29 = 112243457 is a prime.

It is a super-2 number, since 2×1122439692 = 25197417153745922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112243909) 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, 29179 + ... + 32800.

It is an arithmetic number, because the mean of its divisors is an integer number (28076940).

Almost surely, 2112243969 is an apocalyptic number.

It is an amenable number.

112243969 is a deficient number, since it is larger than the sum of its proper divisors (63791).

112243969 is an equidigital number, since it uses as much as digits as its factorization.

112243969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63790.

The product of its digits is 23328, while the sum is 37.

The square root of 112243969 is about 10594.5254258980. The cubic root of 112243969 is about 482.3781990066.

It can be divided in two parts, 112 and 243969, that multiplied together give a triangular number (27324528 = T7392).

The spelling of 112243969 in words is "one hundred twelve million, two hundred forty-three thousand, nine hundred sixty-nine".

Divisors: 1 1811 61979 112243969