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2221283 = 5341911
BaseRepresentation
bin1000011110010011100011
311011212000202
420132103203
51032040113
6115335415
724611021
oct10362343
94155022
102221283
111287979
128b156b
135ca08c
1441b711
152dd258
hex21e4e3

2221283 has 4 divisors (see below), whose sum is σ = 2263248. Its totient is φ = 2179320.

The previous prime is 2221273. The next prime is 2221301. The reversal of 2221283 is 3821222.

2221283 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 an emirpimes, since its reverse is a distinct semiprime: 3821222 = 21910611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2221283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221253) 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, 20903 + ... + 21008.

It is an arithmetic number, because the mean of its divisors is an integer number (565812).

22221283 is an apocalyptic number.

2221283 is a deficient number, since it is larger than the sum of its proper divisors (41965).

2221283 is an equidigital number, since it uses as much as digits as its factorization.

2221283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41964.

The product of its digits is 384, while the sum is 20.

The square root of 2221283 is about 1490.3969269963. The cubic root of 2221283 is about 130.4772007948.

The spelling of 2221283 in words is "two million, two hundred twenty-one thousand, two hundred eighty-three".

Divisors: 1 53 41911 2221283