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2142183 = 3714061
BaseRepresentation
bin1000001010111111100111
311000211112010
420022333213
51022022213
6113525303
724131301
oct10127747
94024463
102142183
1112334aa
12873833
135a0084
143da971
152c4ac3
hex20afe7

2142183 has 4 divisors (see below), whose sum is σ = 2856248. Its totient is φ = 1428120.

The previous prime is 2142181. The next prime is 2142211. The reversal of 2142183 is 3812412.

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

It is not a de Polignac number, because 2142183 - 21 = 2142181 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142181) 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, 357028 + ... + 357033.

It is an arithmetic number, because the mean of its divisors is an integer number (714062).

22142183 is an apocalyptic number.

2142183 is a deficient number, since it is larger than the sum of its proper divisors (714065).

2142183 is an equidigital number, since it uses as much as digits as its factorization.

2142183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714064.

The product of its digits is 384, while the sum is 21.

The square root of 2142183 is about 1463.6198276875. The cubic root of 2142183 is about 128.9096777748.

Adding to 2142183 its reverse (3812412), we get a palindrome (5954595).

The spelling of 2142183 in words is "two million, one hundred forty-two thousand, one hundred eighty-three".

Divisors: 1 3 714061 2142183