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2183238 = 232121291
BaseRepresentation
bin1000010101000001000110
311002220211200
420111001012
51024330423
6114443330
724362061
oct10250106
94086750
102183238
111261332
12893546
135b5975
1440b8d8
152d1d43
hex215046

2183238 has 12 divisors (see below), whose sum is σ = 4730388. Its totient is φ = 727740.

The previous prime is 2183231. The next prime is 2183249. The reversal of 2183238 is 8323812.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60628 + ... + 60663.

It is an arithmetic number, because the mean of its divisors is an integer number (394199).

22183238 is an apocalyptic number.

2183238 is an abundant number, since it is smaller than the sum of its proper divisors (2547150).

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

2183238 is a wasteful number, since it uses less digits than its factorization.

2183238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121299 (or 121296 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2183238 is about 1477.5784243146. The cubic root of 2183238 is about 129.7279914111.

The spelling of 2183238 in words is "two million, one hundred eighty-three thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 121291 242582 363873 727746 1091619 2183238