Base | Representation |
---|---|
bin | 11000001110010… |
… | …01111001100101 |
3 | 112011100201221112 |
4 | 30013021321211 |
5 | 404004432044 |
6 | 32055154405 |
7 | 5015122043 |
oct | 1407117145 |
9 | 464321845 |
10 | 203202149 |
11 | a477a867 |
12 | 58075a05 |
13 | 33138977 |
14 | 1cdb7393 |
15 | 12c8d09e |
hex | c1c9e65 |
203202149 has 2 divisors, whose sum is σ = 203202150. Its totient is φ = 203202148.
The previous prime is 203202119. The next prime is 203202161. The reversal of 203202149 is 941202302.
203202149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 202151524 + 1050625 = 14218^2 + 1025^2 .
It is a cyclic number.
It is not a de Polignac number, because 203202149 - 212 = 203198053 is a prime.
It is a super-2 number, since 2×2032021492 = 82582226716436402, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (203202119) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101601074 + 101601075.
It is an arithmetic number, because the mean of its divisors is an integer number (101601075).
Almost surely, 2203202149 is an apocalyptic number.
It is an amenable number.
203202149 is a deficient number, since it is larger than the sum of its proper divisors (1).
203202149 is an equidigital number, since it uses as much as digits as its factorization.
203202149 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 864, while the sum is 23.
The square root of 203202149 is about 14254.8991227578. The cubic root of 203202149 is about 587.9080843029.
The spelling of 203202149 in words is "two hundred three million, two hundred two thousand, one hundred forty-nine".
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