Base | Representation |
---|---|
bin | 11000110111010… |
… | …00111101010011 |
3 | 112112110120022220 |
4 | 30123220331103 |
5 | 411343302433 |
6 | 32410232123 |
7 | 5111556225 |
oct | 1433507523 |
9 | 475416286 |
10 | 208572243 |
11 | a7808460 |
12 | 59a25643 |
13 | 34299039 |
14 | 1d9b4415 |
15 | 1349e2b3 |
hex | c6e8f53 |
208572243 has 8 divisors (see below), whose sum is σ = 303377856. Its totient is φ = 126407400.
The previous prime is 208572233. The next prime is 208572307. The reversal of 208572243 is 342275802.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 208572243 - 214 = 208555859 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 6320371 = 208572243 / (2 + 0 + 8 + 5 + 7 + 2 + 2 + 4 + 3).
It is not an unprimeable number, because it can be changed into a prime (208572233) 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, 3160153 + ... + 3160218.
It is an arithmetic number, because the mean of its divisors is an integer number (37922232).
Almost surely, 2208572243 is an apocalyptic number.
208572243 is a deficient number, since it is larger than the sum of its proper divisors (94805613).
208572243 is a wasteful number, since it uses less digits than its factorization.
208572243 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6320385.
The product of its (nonzero) digits is 26880, while the sum is 33.
The square root of 208572243 is about 14442.0304320411. The cubic root of 208572243 is about 593.0420711667.
The spelling of 208572243 in words is "two hundred eight million, five hundred seventy-two thousand, two hundred forty-three".
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