Base | Representation |
---|---|
bin | 11000111001111… |
… | …00011100001100 |
3 | 112120002221101112 |
4 | 30130330130030 |
5 | 411440223223 |
6 | 32421431152 |
7 | 5114512160 |
oct | 1434743414 |
9 | 476087345 |
10 | 208914188 |
11 | a7a2135a |
12 | 59b6b4b8 |
13 | 34388882 |
14 | 1da62ca0 |
15 | 1351a778 |
hex | c73c70c |
208914188 has 24 divisors (see below), whose sum is σ = 428021664. Its totient is φ = 87350400.
The previous prime is 208914187. The next prime is 208914191. The reversal of 208914188 is 881419802.
208914188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a zygodrome in base 2.
It is not an unprimeable number, because it can be changed into a prime (208914187) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89843 + ... + 92138.
It is an arithmetic number, because the mean of its divisors is an integer number (17834236).
Almost surely, 2208914188 is an apocalyptic number.
208914188 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
208914188 is an abundant number, since it is smaller than the sum of its proper divisors (219107476).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
208914188 is a wasteful number, since it uses less digits than its factorization.
208914188 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 182033 (or 182031 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 41.
The square root of 208914188 is about 14453.8641200199. The cubic root of 208914188 is about 593.3659829976.
The spelling of 208914188 in words is "two hundred eight million, nine hundred fourteen thousand, one hundred eighty-eight".
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