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20230489 is a prime number
BaseRepresentation
bin100110100101…
…1000101011001
31102001211000101
41031023011121
520134333424
62001335401
7333646006
oct115130531
942054011
1020230489
1110468514
126937561
134264306
1429888ad
151b99344
hex134b159

20230489 has 2 divisors, whose sum is σ = 20230490. Its totient is φ = 20230488.

The previous prime is 20230439. The next prime is 20230499. The reversal of 20230489 is 98403202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19360000 + 870489 = 4400^2 + 933^2 .

It is a cyclic number.

It is not a de Polignac number, because 20230489 - 27 = 20230361 is a prime.

It is not a weakly prime, because it can be changed into another prime (20230439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10115244 + 10115245.

It is an arithmetic number, because the mean of its divisors is an integer number (10115245).

Almost surely, 220230489 is an apocalyptic number.

It is an amenable number.

20230489 is a deficient number, since it is larger than the sum of its proper divisors (1).

20230489 is an equidigital number, since it uses as much as digits as its factorization.

20230489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20230489 is about 4497.8315886658. The cubic root of 20230489 is about 272.4805204491.

The spelling of 20230489 in words is "twenty million, two hundred thirty thousand, four hundred eighty-nine".