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2222331 = 33720021
BaseRepresentation
bin1000011110100011111011
311011220110120
420132203323
51032103311
6115344323
724614046
oct10364373
94156416
102222331
111288741
128b20a3
135ca6b7
1441bc5d
152dd706
hex21e8fb

2222331 has 8 divisors (see below), whose sum is σ = 3043344. Its totient is φ = 1441440.

The previous prime is 2222327. The next prime is 2222333. The reversal of 2222331 is 1332222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2222331 - 22 = 2222327 is a prime.

It is a super-2 number, since 2×22223312 = 9877510147122, which contains 22 as substring.

It is a d-powerful number, because it can be written as 29 + 216 + 220 + 220 + 34 + 310 + 1 .

It is a self number, because there is not a number n which added to its sum of digits gives 2222331.

It is not an unprimeable number, because it can be changed into a prime (2222333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9900 + ... + 10121.

It is an arithmetic number, because the mean of its divisors is an integer number (380418).

22222331 is an apocalyptic number.

2222331 is a deficient number, since it is larger than the sum of its proper divisors (821013).

2222331 is a wasteful number, since it uses less digits than its factorization.

2222331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20061.

The product of its digits is 144, while the sum is 15.

The square root of 2222331 is about 1490.7484697292. The cubic root of 2222331 is about 130.4977172572.

Adding to 2222331 its reverse (1332222), we get a palindrome (3554553).

The spelling of 2222331 in words is "two million, two hundred twenty-two thousand, three hundred thirty-one".

Divisors: 1 3 37 111 20021 60063 740777 2222331