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67082231 is a prime number
BaseRepresentation
bin1111111111100…
…1011111110111
311200020010112002
43333321133313
5114133112411
610353445515
71443122006
oct377713767
9150203462
1067082231
1134958967
121a57089b
1310b89738
148ca2c3d
155d5133b
hex3ff97f7

67082231 has 2 divisors, whose sum is σ = 67082232. Its totient is φ = 67082230.

The previous prime is 67082227. The next prime is 67082251. The reversal of 67082231 is 13228076.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67082231 - 22 = 67082227 is a prime.

It is a super-2 number, since 2×670822312 = 9000051431874722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 67082194 and 67082203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67082251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33541115 + 33541116.

It is an arithmetic number, because the mean of its divisors is an integer number (33541116).

Almost surely, 267082231 is an apocalyptic number.

67082231 is a deficient number, since it is larger than the sum of its proper divisors (1).

67082231 is an equidigital number, since it uses as much as digits as its factorization.

67082231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 67082231 is about 8190.3742893716. The cubic root of 67082231 is about 406.3209038846.

The spelling of 67082231 in words is "sixty-seven million, eighty-two thousand, two hundred thirty-one".