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112031213 = 716004459
BaseRepresentation
bin1101010110101…
…11010111101101
321210210202221012
412223113113231
5212134444323
615041115005
72530151420
oct653272755
9253722835
10112031213
1158269788
1231628a65
131a296a78
1410c439b7
159c7e678
hex6ad75ed

112031213 has 4 divisors (see below), whose sum is σ = 128035680. Its totient is φ = 96026748.

The previous prime is 112031203. The next prime is 112031233. The reversal of 112031213 is 312130211.

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 112031213 - 26 = 112031149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112031203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8002223 + ... + 8002236.

It is an arithmetic number, because the mean of its divisors is an integer number (32008920).

Almost surely, 2112031213 is an apocalyptic number.

It is an amenable number.

112031213 is a deficient number, since it is larger than the sum of its proper divisors (16004467).

112031213 is an equidigital number, since it uses as much as digits as its factorization.

112031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16004466.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 112031213 is about 10584.4798171663. The cubic root of 112031213 is about 482.0732271108.

Adding to 112031213 its reverse (312130211), we get a palindrome (424161424).

The spelling of 112031213 in words is "one hundred twelve million, thirty-one thousand, two hundred thirteen".

Divisors: 1 7 16004459 112031213