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22238082 = 2321235449
BaseRepresentation
bin101010011010…
…1001110000010
31112211210220200
41110311032002
521143104312
62112350030
7360010026
oct124651602
945753820
1022238082
1111609889
127545316
1347b8039
142d4c386
151e440dc
hex1535382

22238082 has 12 divisors (see below), whose sum is σ = 48182550. Its totient is φ = 7412688.

The previous prime is 22238053. The next prime is 22238087. The reversal of 22238082 is 28083222.

It can be written as a sum of positive squares in only one way, i.e., 13111641 + 9126441 = 3621^2 + 3021^2 .

It is not an unprimeable number, because it can be changed into a prime (22238087) 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 5 ways as a sum of consecutive naturals, for example, 617707 + ... + 617742.

Almost surely, 222238082 is an apocalyptic number.

22238082 is an abundant number, since it is smaller than the sum of its proper divisors (25944468).

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

22238082 is a wasteful number, since it uses less digits than its factorization.

22238082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235457 (or 1235454 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 22238082 is about 4715.7270913402. The cubic root of 22238082 is about 281.2110891355.

The spelling of 22238082 in words is "twenty-two million, two hundred thirty-eight thousand, eighty-two".

Divisors: 1 2 3 6 9 18 1235449 2470898 3706347 7412694 11119041 22238082