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23005757 is a prime number
BaseRepresentation
bin101011111000…
…0101000111101
31121021210222002
41113300220331
521342141012
62141032045
7366355115
oct127605075
947253862
1023005757
1111a93625
127855625
1349c6598
1430ac045
1520467c2
hex15f0a3d

23005757 has 2 divisors, whose sum is σ = 23005758. Its totient is φ = 23005756.

The previous prime is 23005747. The next prime is 23005799. The reversal of 23005757 is 75750032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12630916 + 10374841 = 3554^2 + 3221^2 .

It is a cyclic number.

It is not a de Polignac number, because 23005757 - 210 = 23004733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23005747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11502878 + 11502879.

It is an arithmetic number, because the mean of its divisors is an integer number (11502879).

Almost surely, 223005757 is an apocalyptic number.

It is an amenable number.

23005757 is a deficient number, since it is larger than the sum of its proper divisors (1).

23005757 is an equidigital number, since it uses as much as digits as its factorization.

23005757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7350, while the sum is 29.

The square root of 23005757 is about 4796.4316944996. The cubic root of 23005757 is about 284.4104237480.

Adding to 23005757 its reverse (75750032), we get a palindrome (98755789).

The spelling of 23005757 in words is "twenty-three million, five thousand, seven hundred fifty-seven".