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67283213 is a prime number
BaseRepresentation
bin1000000001010…
…10100100001101
311200121100012212
410000222210031
5114211030323
610402040205
71444616654
oct400524415
9150540185
1067283213
1134a85968
121a649065
1310c2a06a
148d1619b
155d90b78
hex402a90d

67283213 has 2 divisors, whose sum is σ = 67283214. Its totient is φ = 67283212.

The previous prime is 67283201. The next prime is 67283231. The reversal of 67283213 is 31238276.

It is a happy number.

Together with next prime (67283231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44262409 + 23020804 = 6653^2 + 4798^2 .

It is a cyclic number.

It is not a de Polignac number, because 67283213 - 24 = 67283197 is a prime.

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 67283213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67283243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33641606 + 33641607.

It is an arithmetic number, because the mean of its divisors is an integer number (33641607).

Almost surely, 267283213 is an apocalyptic number.

It is an amenable number.

67283213 is a deficient number, since it is larger than the sum of its proper divisors (1).

67283213 is an equidigital number, since it uses as much as digits as its factorization.

67283213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 67283213 is about 8202.6345158126. The cubic root of 67283213 is about 406.7262857887.

The spelling of 67283213 in words is "sixty-seven million, two hundred eighty-three thousand, two hundred thirteen".