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22871 is a prime number
BaseRepresentation
bin101100101010111
31011101002
411211113
51212441
6253515
7123452
oct54527
934332
1022871
1116202
121129b
13a544
148499
156b9b
hex5957

22871 has 2 divisors, whose sum is σ = 22872. Its totient is φ = 22870.

The previous prime is 22861. The next prime is 22877. The reversal of 22871 is 17822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22871 - 26 = 22807 is a prime.

It is a Chen prime.

It is a plaindrome in base 12.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11435 + 11436.

It is an arithmetic number, because the mean of its divisors is an integer number (11436).

222871 is an apocalyptic number.

22871 is a deficient number, since it is larger than the sum of its proper divisors (1).

22871 is an equidigital number, since it uses as much as digits as its factorization.

22871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224, while the sum is 20.

The square root of 22871 is about 151.2316104523. The cubic root of 22871 is about 28.3854021388.

The spelling of 22871 in words is "twenty-two thousand, eight hundred seventy-one".