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2183142 = 231322153
BaseRepresentation
bin1000010100111111100110
311002220201010
420110333212
51024330032
6114443050
724361563
oct10247746
94086633
102183142
111261255
12893486
135b5900
1440b86a
152d1ccc
hex214fe6

2183142 has 24 divisors (see below), whose sum is σ = 4730184. Its totient is φ = 671424.

The previous prime is 2183141. The next prime is 2183171. The reversal of 2183142 is 2413812.

It is a super-2 number, since 2×21831422 = 9532217984328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63 + ... + 2090.

It is an arithmetic number, because the mean of its divisors is an integer number (197091).

22183142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2183142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2365092).

2183142 is an abundant number, since it is smaller than the sum of its proper divisors (2547042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2183142 is a wasteful number, since it uses less digits than its factorization.

2183142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184 (or 2171 counting only the distinct ones).

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

The square root of 2183142 is about 1477.5459383721. The cubic root of 2183142 is about 129.7260899434.

Adding to 2183142 its reverse (2413812), we get a palindrome (4596954).

The spelling of 2183142 in words is "two million, one hundred eighty-three thousand, one hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 169 338 507 1014 2153 4306 6459 12918 27989 55978 83967 167934 363857 727714 1091571 2183142