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22380871 is a prime number
BaseRepresentation
bin101010101100…
…0000101000111
31120010001210011
41111120011013
521212141441
62115411051
7361143232
oct125300507
946101704
1022380871
11116a7097
1275b3a87
134838026
142d88419
151e71581
hex1558147

22380871 has 2 divisors, whose sum is σ = 22380872. Its totient is φ = 22380870.

The previous prime is 22380847. The next prime is 22380877. The reversal of 22380871 is 17808322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22380871 - 29 = 22380359 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22380877) 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, 11190435 + 11190436.

It is an arithmetic number, because the mean of its divisors is an integer number (11190436).

Almost surely, 222380871 is an apocalyptic number.

22380871 is a deficient number, since it is larger than the sum of its proper divisors (1).

22380871 is an equidigital number, since it uses as much as digits as its factorization.

22380871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 22380871 is about 4730.8425253859. The cubic root of 22380871 is about 281.8116837054.

The spelling of 22380871 in words is "twenty-two million, three hundred eighty thousand, eight hundred seventy-one".