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80706347 is a prime number
BaseRepresentation
bin1001100111101…
…11101100101011
312121212022021222
410303313230223
5131130100342
612001452255
71666664321
oct463675453
9177768258
1080706347
1141613967
122304108b
1313949a47
14aa0bd11
157142ed2
hex4cf7b2b

80706347 has 2 divisors, whose sum is σ = 80706348. Its totient is φ = 80706346.

The previous prime is 80706337. The next prime is 80706389. The reversal of 80706347 is 74360708.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80706347 - 24 = 80706331 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80706317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40353173 + 40353174.

It is an arithmetic number, because the mean of its divisors is an integer number (40353174).

Almost surely, 280706347 is an apocalyptic number.

80706347 is a deficient number, since it is larger than the sum of its proper divisors (1).

80706347 is an equidigital number, since it uses as much as digits as its factorization.

80706347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 80706347 is about 8983.6711315586. The cubic root of 80706347 is about 432.1513726359.

The spelling of 80706347 in words is "eighty million, seven hundred six thousand, three hundred forty-seven".