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2112885 = 3553747
BaseRepresentation
bin1000000011110101110101
310222100100000
420003311311
51020103020
6113141513
723650005
oct10036565
93870300
102112885
111213495
1285a899
1358c938
143d0005
152bb090
hex203d75

2112885 has 48 divisors (see below), whose sum is σ = 3983616. Its totient is φ = 1073088.

The previous prime is 2112871. The next prime is 2112893. The reversal of 2112885 is 5882112.

2112885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2112885 - 26 = 2112821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 44932 + ... + 44978.

It is an arithmetic number, because the mean of its divisors is an integer number (82992).

22112885 is an apocalyptic number.

It is an amenable number.

2112885 is a deficient number, since it is larger than the sum of its proper divisors (1870731).

2112885 is an equidigital number, since it uses as much as digits as its factorization.

2112885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 92 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 2112885 is about 1453.5766233673. The cubic root of 2112885 is about 128.3192915804.

Adding to 2112885 its reverse (5882112), we get a palindrome (7994997).

The spelling of 2112885 in words is "two million, one hundred twelve thousand, eight hundred eighty-five".

Divisors: 1 3 5 9 15 27 37 45 47 81 111 135 141 185 235 243 333 405 423 555 705 999 1215 1269 1665 1739 2115 2997 3807 4995 5217 6345 8695 8991 11421 14985 15651 19035 26085 44955 46953 57105 78255 140859 234765 422577 704295 2112885