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BaseRepresentation
bin1000000001001…
…00001100000001
311200120000101022
410000210030001
5114204211324
610401315225
71444450544
oct400441401
9150500338
1067257089
1134a68279
121a635b15
1310c1b1c3
148d0a85b
155d8805e
hex4024301

67257089 has 2 divisors, whose sum is σ = 67257090. Its totient is φ = 67257088.

The previous prime is 67257077. The next prime is 67257107. The reversal of 67257089 is 98075276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67108864 + 148225 = 8192^2 + 385^2 .

It is a cyclic number.

It is not a de Polignac number, because 67257089 - 212 = 67252993 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (67257019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33628544 + 33628545.

It is an arithmetic number, because the mean of its divisors is an integer number (33628545).

Almost surely, 267257089 is an apocalyptic number.

It is an amenable number.

67257089 is a deficient number, since it is larger than the sum of its proper divisors (1).

67257089 is an equidigital number, since it uses as much as digits as its factorization.

67257089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 67257089 is about 8201.0419459969. The cubic root of 67257089 is about 406.6736392098.

The spelling of 67257089 in words is "sixty-seven million, two hundred fifty-seven thousand, eighty-nine".