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112210021 = 7111457273
BaseRepresentation
bin1101011000000…
…11000001100101
321211010212012201
412230003001211
5212211210041
615045014501
72531524630
oct654030145
9254125181
10112210021
1158381060
12316b4431
131a32a281
1410c8cc17
159cb7631
hex6b03065

112210021 has 8 divisors (see below), whose sum is σ = 139898304. Its totient is φ = 87436320.

The previous prime is 112210003. The next prime is 112210027. The reversal of 112210021 is 120012211.

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

It is a cyclic number.

It is not a de Polignac number, because 112210021 - 217 = 112078949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112210027) 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 7 ways as a sum of consecutive naturals, for example, 728560 + ... + 728713.

It is an arithmetic number, because the mean of its divisors is an integer number (17487288).

Almost surely, 2112210021 is an apocalyptic number.

112210021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112210021 is a deficient number, since it is larger than the sum of its proper divisors (27688283).

112210021 is a wasteful number, since it uses less digits than its factorization.

112210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457291.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 112210021 is about 10592.9231565229. The cubic root of 112210021 is about 482.3295626108.

Adding to 112210021 its reverse (120012211), we get a palindrome (232222232).

The spelling of 112210021 in words is "one hundred twelve million, two hundred ten thousand, twenty-one".

Divisors: 1 7 11 77 1457273 10200911 16030003 112210021