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208100239 is a prime number
BaseRepresentation
bin11000110011101…
…01101110001111
3112111120120212021
430121311232033
5411233201424
632352151011
75104552144
oct1431655617
9474516767
10208100239
11a7515876
1259838467
1334162249
141d8d03cb
15134094e4
hexc675b8f

208100239 has 2 divisors, whose sum is σ = 208100240. Its totient is φ = 208100238.

The previous prime is 208100231. The next prime is 208100261. The reversal of 208100239 is 932001802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 208100239 - 23 = 208100231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (208100231) 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, 104050119 + 104050120.

It is an arithmetic number, because the mean of its divisors is an integer number (104050120).

Almost surely, 2208100239 is an apocalyptic number.

208100239 is a deficient number, since it is larger than the sum of its proper divisors (1).

208100239 is an equidigital number, since it uses as much as digits as its factorization.

208100239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 208100239 is about 14425.6798453314. The cubic root of 208100239 is about 592.5943771280.

The spelling of 208100239 in words is "two hundred eight million, one hundred thousand, two hundred thirty-nine".