Base | Representation |
---|---|
bin | 11000110011011… |
… | …10010111111111 |
3 | 112111112001120121 |
4 | 30121232113333 |
5 | 411231221033 |
6 | 32351355411 |
7 | 5104365331 |
oct | 1431562777 |
9 | 474461517 |
10 | 208070143 |
11 | a74a51a6 |
12 | 59822b67 |
13 | 34151638 |
14 | 1d8c3451 |
15 | 1340062d |
hex | c66e5ff |
208070143 has 4 divisors (see below), whose sum is σ = 209316240. Its totient is φ = 206824048.
The previous prime is 208070111. The next prime is 208070147. The reversal of 208070143 is 341070802.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 208070143 - 25 = 208070111 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (208070147) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622798 + ... + 623131.
It is an arithmetic number, because the mean of its divisors is an integer number (52329060).
Almost surely, 2208070143 is an apocalyptic number.
208070143 is a deficient number, since it is larger than the sum of its proper divisors (1246097).
208070143 is a wasteful number, since it uses less digits than its factorization.
208070143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1246096.
The product of its (nonzero) digits is 1344, while the sum is 25.
The square root of 208070143 is about 14424.6366678679. The cubic root of 208070143 is about 592.5658082352.
The spelling of 208070143 in words is "two hundred eight million, seventy thousand, one hundred forty-three".
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