Base | Representation |
---|---|
bin | 11000110100000… |
… | …00101010111011 |
3 | 112111122212101011 |
4 | 30122000222323 |
5 | 411241120313 |
6 | 32353134351 |
7 | 5105126656 |
oct | 1432005273 |
9 | 474585334 |
10 | 208145083 |
11 | a7546533 |
12 | 5985a3b7 |
13 | 34179793 |
14 | 1d90289d |
15 | 1341793d |
hex | c680abb |
208145083 has 2 divisors, whose sum is σ = 208145084. Its totient is φ = 208145082.
The previous prime is 208145051. The next prime is 208145107. The reversal of 208145083 is 380541802.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 208145083 - 25 = 208145051 is a prime.
It is not a weakly prime, because it can be changed into another prime (208145033) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104072541 + 104072542.
It is an arithmetic number, because the mean of its divisors is an integer number (104072542).
Almost surely, 2208145083 is an apocalyptic number.
208145083 is a deficient number, since it is larger than the sum of its proper divisors (1).
208145083 is an equidigital number, since it uses as much as digits as its factorization.
208145083 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 7680, while the sum is 31.
The square root of 208145083 is about 14427.2340730994. The cubic root of 208145083 is about 592.6369405800.
Adding to 208145083 its reverse (380541802), we get a palindrome (588686885).
The spelling of 208145083 in words is "two hundred eight million, one hundred forty-five thousand, eighty-three".
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