Base | Representation |
---|---|
bin | 11000011101010… |
… | …01111001010000 |
3 | 112022001121212112 |
4 | 30032221321100 |
5 | 410010340313 |
6 | 32205244452 |
7 | 5040621020 |
oct | 1416517120 |
9 | 468047775 |
10 | 205168208 |
11 | a58a2a03 |
12 | 58863728 |
13 | 3367680b |
14 | 1d369a80 |
15 | 1302a8a8 |
hex | c3a9e50 |
205168208 has 40 divisors (see below), whose sum is σ = 455976768. Its totient is φ = 87604992.
The previous prime is 205168181. The next prime is 205168217. The reversal of 205168208 is 802861502.
It is a congruent number.
It is an unprimeable number.
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 in 7 ways as a sum of consecutive naturals, for example, 28460 + ... + 34932.
Almost surely, 2205168208 is an apocalyptic number.
205168208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
205168208 is an abundant number, since it is smaller than the sum of its proper divisors (250808560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
205168208 is a wasteful number, since it uses less digits than its factorization.
205168208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6771 (or 6765 counting only the distinct ones).
The product of its (nonzero) digits is 7680, while the sum is 32.
The square root of 205168208 is about 14323.6939369703. The cubic root of 205168208 is about 589.7980808608.
The spelling of 205168208 in words is "two hundred five million, one hundred sixty-eight thousand, two hundred eight".
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