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22930361 is a prime number
BaseRepresentation
bin101011101111…
…0001110111001
31121010222112122
41113132032321
521332232421
62135251025
7365622236
oct127361671
947128478
1022930361
1111a41a13
127819a75
13499b17c
14308c78d
15202e2ab
hex15de3b9

22930361 has 2 divisors, whose sum is σ = 22930362. Its totient is φ = 22930360.

The previous prime is 22930339. The next prime is 22930363. The reversal of 22930361 is 16303922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19971961 + 2958400 = 4469^2 + 1720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22930361 is a prime.

Together with 22930363, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22930361.

It is not a weakly prime, because it can be changed into another prime (22930363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11465180 + 11465181.

It is an arithmetic number, because the mean of its divisors is an integer number (11465181).

Almost surely, 222930361 is an apocalyptic number.

It is an amenable number.

22930361 is a deficient number, since it is larger than the sum of its proper divisors (1).

22930361 is an equidigital number, since it uses as much as digits as its factorization.

22930361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 22930361 is about 4788.5656516331. The cubic root of 22930361 is about 284.0993874524.

The spelling of 22930361 in words is "twenty-two million, nine hundred thirty thousand, three hundred sixty-one".