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112211031 = 3109343153
BaseRepresentation
bin1101011000000…
…11010001010111
321211010220121010
412230003101113
5212211223111
615045023303
72531530602
oct654032127
9254126533
10112211031
1158381899
12316b4b33
131a32a87a
1410c8d339
159cb7aa6
hex6b03457

112211031 has 8 divisors (see below), whose sum is σ = 150987760. Its totient is φ = 74120832.

The previous prime is 112210939. The next prime is 112211053. The reversal of 112211031 is 130112211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 112211031 - 29 = 112210519 is a prime.

It is a super-2 number, since 2×1122110312 = 25182630956165922, 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 = 112210998 and 112211016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112211081) 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 7 ways as a sum of consecutive naturals, for example, 171250 + ... + 171903.

It is an arithmetic number, because the mean of its divisors is an integer number (18873470).

Almost surely, 2112211031 is an apocalyptic number.

112211031 is a deficient number, since it is larger than the sum of its proper divisors (38776729).

112211031 is a wasteful number, since it uses less digits than its factorization.

112211031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343265.

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

The square root of 112211031 is about 10592.9708297531. The cubic root of 112211031 is about 482.3310097525.

Adding to 112211031 its reverse (130112211), we get a palindrome (242323242).

The spelling of 112211031 in words is "one hundred twelve million, two hundred eleven thousand, thirty-one".

Divisors: 1 3 109 327 343153 1029459 37403677 112211031