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22316389 is a prime number
BaseRepresentation
bin101010100100…
…0010101100101
31112222210022221
41111020111211
521203111024
62114152341
7360454234
oct125102545
945883287
1022316389
11116626a7
1275826b1
134814884
142d6cb1b
151e5c3e4
hex1548565

22316389 has 2 divisors, whose sum is σ = 22316390. Its totient is φ = 22316388.

The previous prime is 22316383. The next prime is 22316419. The reversal of 22316389 is 98361322.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21622500 + 693889 = 4650^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 22316389 - 23 = 22316381 is a prime.

It is a super-3 number, since 3×223163893 (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22316381) 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 as a sum of consecutive naturals, namely, 11158194 + 11158195.

It is an arithmetic number, because the mean of its divisors is an integer number (11158195).

Almost surely, 222316389 is an apocalyptic number.

It is an amenable number.

22316389 is a deficient number, since it is larger than the sum of its proper divisors (1).

22316389 is an equidigital number, since it uses as much as digits as its factorization.

22316389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 22316389 is about 4724.0225444001. The cubic root of 22316389 is about 281.5407788379.

The spelling of 22316389 in words is "twenty-two million, three hundred sixteen thousand, three hundred eighty-nine".