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2182393 = 12771709
BaseRepresentation
bin1000010100110011111001
311002212200101
420110303321
51024314033
6114435401
724356443
oct10246371
94085611
102182393
111260734
12892b61
135b5475
1440b493
152d197d
hex214cf9

2182393 has 4 divisors (see below), whose sum is σ = 2185380. Its totient is φ = 2179408.

The previous prime is 2182387. The next prime is 2182399. The reversal of 2182393 is 3932812.

2182393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2182387) and next prime (2182399).

It can be written as a sum of positive squares in 2 ways, for example, as 898704 + 1283689 = 948^2 + 1133^2 .

It is a cyclic number.

It is not a de Polignac number, because 2182393 - 217 = 2051321 is a prime.

It is a Duffinian number.

2182393 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2182399) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 423 + ... + 2131.

It is an arithmetic number, because the mean of its divisors is an integer number (546345).

22182393 is an apocalyptic number.

It is an amenable number.

2182393 is a deficient number, since it is larger than the sum of its proper divisors (2987).

2182393 is a wasteful number, since it uses less digits than its factorization.

2182393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986.

The product of its digits is 2592, while the sum is 28.

The square root of 2182393 is about 1477.2924558123. The cubic root of 2182393 is about 129.7112526194.

The spelling of 2182393 in words is "two million, one hundred eighty-two thousand, three hundred ninety-three".

Divisors: 1 1277 1709 2182393