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112210031 = 234878697
BaseRepresentation
bin1101011000000…
…11000001101111
321211010212020002
412230003001233
5212211210111
615045014515
72531524643
oct654030157
9254125202
10112210031
115838106a
12316b443b
131a32a28b
1410c8cc23
159cb763b
hex6b0306f

112210031 has 4 divisors (see below), whose sum is σ = 117088752. Its totient is φ = 107331312.

The previous prime is 112210027. The next prime is 112210037. The reversal of 112210031 is 130012211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112210031 - 22 = 112210027 is a prime.

It is a super-2 number, since 2×1122100312 = 25182182114041922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112209994 and 112210021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112210037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2439326 + ... + 2439371.

It is an arithmetic number, because the mean of its divisors is an integer number (29272188).

Almost surely, 2112210031 is an apocalyptic number.

112210031 is a deficient number, since it is larger than the sum of its proper divisors (4878721).

112210031 is an equidigital number, since it uses as much as digits as its factorization.

112210031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4878720.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 112210031 is about 10592.9236285362. The cubic root of 112210031 is about 482.3295769390.

Adding to 112210031 its reverse (130012211), we get a palindrome (242222242).

The spelling of 112210031 in words is "one hundred twelve million, two hundred ten thousand, thirty-one".

Divisors: 1 23 4878697 112210031