Base | Representation |
---|---|
bin | 11000110100011… |
… | …11110110111101 |
3 | 112111210000201020 |
4 | 30122033312331 |
5 | 411300113133 |
6 | 32354334353 |
7 | 5105506230 |
oct | 1432176675 |
9 | 474700636 |
10 | 208207293 |
11 | a7589248 |
12 | 5988a3b9 |
13 | 3419bba8 |
14 | 1d91b417 |
15 | 1342b0b3 |
hex | c68fdbd |
208207293 has 32 divisors (see below), whose sum is σ = 332107776. Its totient is φ = 113443968.
The previous prime is 208207291. The next prime is 208207297. The reversal of 208207293 is 392702802.
It is not a de Polignac number, because 208207293 - 21 = 208207291 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (208207291) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242521 + ... + 243377.
It is an arithmetic number, because the mean of its divisors is an integer number (10378368).
Almost surely, 2208207293 is an apocalyptic number.
208207293 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
It is an amenable number.
208207293 is a deficient number, since it is larger than the sum of its proper divisors (123900483).
208207293 is a wasteful number, since it uses less digits than its factorization.
208207293 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1393.
The product of its (nonzero) digits is 12096, while the sum is 33.
The square root of 208207293 is about 14429.3899039426. The cubic root of 208207293 is about 592.6959767599.
The spelling of 208207293 in words is "two hundred eight million, two hundred seven thousand, two hundred ninety-three".
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