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2112213 = 31016971
BaseRepresentation
bin1000000011101011010101
310222022102010
420003223111
51020042323
6113134433
723645025
oct10035325
93868363
102112213
111212a34
1285a419
1358c53c
143cda85
152bac93
hex203ad5

2112213 has 8 divisors (see below), whose sum is σ = 2844576. Its totient is φ = 1394000.

The previous prime is 2112193. The next prime is 2112217. The reversal of 2112213 is 3122112.

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 2112213 - 210 = 2111189 is a prime.

It is a super-2 number, since 2×21122132 = 8922887514738, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3183 + ... + 3788.

It is an arithmetic number, because the mean of its divisors is an integer number (355572).

22112213 is an apocalyptic number.

It is an amenable number.

2112213 is a deficient number, since it is larger than the sum of its proper divisors (732363).

2112213 is a wasteful number, since it uses less digits than its factorization.

2112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7075.

The product of its digits is 24, while the sum is 12.

The square root of 2112213 is about 1453.3454510198. The cubic root of 2112213 is about 128.3056862165.

Adding to 2112213 its reverse (3122112), we get a palindrome (5234325).

The spelling of 2112213 in words is "two million, one hundred twelve thousand, two hundred thirteen".

Divisors: 1 3 101 303 6971 20913 704071 2112213