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203311141 = 1129637339
BaseRepresentation
bin11000001111001…
…00100000100101
3112011120021110021
430013210200211
5404021424031
632101355141
75016054565
oct1407444045
9464507407
10203311141
11a4844740
1258108ab1
1333176467
141d004da5
1512cb0511
hexc1e4825

203311141 has 8 divisors (see below), whose sum is σ = 229442400. Its totient is φ = 178454640.

The previous prime is 203311111. The next prime is 203311193. The reversal of 203311141 is 141113302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203311141 - 217 = 203180069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203311111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318351 + ... + 318988.

It is an arithmetic number, because the mean of its divisors is an integer number (28680300).

Almost surely, 2203311141 is an apocalyptic number.

It is an amenable number.

203311141 is a deficient number, since it is larger than the sum of its proper divisors (26131259).

203311141 is a wasteful number, since it uses less digits than its factorization.

203311141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637379.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 203311141 is about 14258.7215766351. The cubic root of 203311141 is about 588.0131780486.

Adding to 203311141 its reverse (141113302), we get a palindrome (344424443).

The spelling of 203311141 in words is "two hundred three million, three hundred eleven thousand, one hundred forty-one".

Divisors: 1 11 29 319 637339 7010729 18482831 203311141