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206931201479 is a prime number
BaseRepresentation
bin1100000010111000001…
…1111000110111000111
3201210010101120012110022
43000232003320313013
511342243341421404
6235021325445355
720643643122332
oct3005603706707
9653111505408
10206931201479
117a8392a5492
1234130a1085b
131668a2b7422
14a03084d619
1555b1bed8be
hex302e0f8dc7

206931201479 has 2 divisors, whose sum is σ = 206931201480. Its totient is φ = 206931201478.

The previous prime is 206931201469. The next prime is 206931201481. The reversal of 206931201479 is 974102139602.

206931201479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206931201479 - 28 = 206931201223 is a prime.

Together with 206931201481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206931201439) 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, 103465600739 + 103465600740.

It is an arithmetic number, because the mean of its divisors is an integer number (103465600740).

Almost surely, 2206931201479 is an apocalyptic number.

206931201479 is a deficient number, since it is larger than the sum of its proper divisors (1).

206931201479 is an equidigital number, since it uses as much as digits as its factorization.

206931201479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 206931201479 in words is "two hundred six billion, nine hundred thirty-one million, two hundred one thousand, four hundred seventy-nine".