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85385207 is a prime number
BaseRepresentation
bin1010001011011…
…01111111110111
312221200000111002
411011231333313
5133324311312
612250033515
72054522315
oct505557767
9187600432
1085385207
114421a196
122471889b
13148c75bb
14b4a90b5
1577694c2
hex516dff7

85385207 has 2 divisors, whose sum is σ = 85385208. Its totient is φ = 85385206.

The previous prime is 85385197. The next prime is 85385219. The reversal of 85385207 is 70258358.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85385207 - 28 = 85384951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85385227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42692603 + 42692604.

It is an arithmetic number, because the mean of its divisors is an integer number (42692604).

Almost surely, 285385207 is an apocalyptic number.

85385207 is a deficient number, since it is larger than the sum of its proper divisors (1).

85385207 is an equidigital number, since it uses as much as digits as its factorization.

85385207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 85385207 is about 9240.4116250306. The cubic root of 85385207 is about 440.3461583827.

The spelling of 85385207 in words is "eighty-five million, three hundred eighty-five thousand, two hundred seven".