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2182023 = 32242447
BaseRepresentation
bin1000010100101110000111
311002212011200
420110232013
51024311043
6114433543
724355404
oct10245607
94085150
102182023
111260428
128928b3
135b524c
1440b2ab
152d17d3
hex214b87

2182023 has 6 divisors (see below), whose sum is σ = 3151824. Its totient is φ = 1454676.

The previous prime is 2182021. The next prime is 2182027. The reversal of 2182023 is 3202812.

It is a happy number.

It is not a de Polignac number, because 2182023 - 21 = 2182021 is a prime.

It is a super-2 number, since 2×21820232 = 9522448745058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2181987 and 2182005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121215 + ... + 121232.

It is an arithmetic number, because the mean of its divisors is an integer number (525304).

22182023 is an apocalyptic number.

2182023 is a deficient number, since it is larger than the sum of its proper divisors (969801).

2182023 is a wasteful number, since it uses less digits than its factorization.

2182023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242453 (or 242450 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2182023 is about 1477.1672214072. The cubic root of 2182023 is about 129.7039218475.

Adding to 2182023 its reverse (3202812), we get a palindrome (5384835).

The spelling of 2182023 in words is "two million, one hundred eighty-two thousand, twenty-three".

Divisors: 1 3 9 242447 727341 2182023