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65424241 is a prime number
BaseRepresentation
bin1111100110010…
…0101101110001
311120002220012001
43321210231301
5113222033431
610254134001
71423045141
oct371445561
9146086161
1065424241
1133a26223
1219ab1301
1310728b8c
148990921
155b24e61
hex3e64b71

65424241 has 2 divisors, whose sum is σ = 65424242. Its totient is φ = 65424240.

The previous prime is 65424221. The next prime is 65424253. The reversal of 65424241 is 14242456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48441600 + 16982641 = 6960^2 + 4121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-65424241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65424221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32712120 + 32712121.

It is an arithmetic number, because the mean of its divisors is an integer number (32712121).

Almost surely, 265424241 is an apocalyptic number.

It is an amenable number.

65424241 is a deficient number, since it is larger than the sum of its proper divisors (1).

65424241 is an equidigital number, since it uses as much as digits as its factorization.

65424241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 28.

The square root of 65424241 is about 8088.5252673154. The cubic root of 65424241 is about 402.9454266686.

Adding to 65424241 its product of digits (7680), we get a square (65431921 = 80892).

Adding to 65424241 its reverse (14242456), we get a palindrome (79666697).

The spelling of 65424241 in words is "sixty-five million, four hundred twenty-four thousand, two hundred forty-one".