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203041241 = 1315618557
BaseRepresentation
bin11000001101000…
…10100111011001
3112011001120012222
430012202213121
5403434304431
632051513425
75013551654
oct1406424731
9464046188
10203041241
11a467a987
1257bb8875
13330b0660
141cd7489b
1512c5a57b
hexc1a29d9

203041241 has 4 divisors (see below), whose sum is σ = 218659812. Its totient is φ = 187422672.

The previous prime is 203041231. The next prime is 203041249. The reversal of 203041241 is 142140302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142140302 = 271070151.

It can be written as a sum of positive squares in 2 ways, for example, as 58079641 + 144961600 = 7621^2 + 12040^2 .

It is a cyclic number.

It is not a de Polignac number, because 203041241 - 26 = 203041177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203041249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7809266 + ... + 7809291.

It is an arithmetic number, because the mean of its divisors is an integer number (54664953).

Almost surely, 2203041241 is an apocalyptic number.

It is an amenable number.

203041241 is a deficient number, since it is larger than the sum of its proper divisors (15618571).

203041241 is a wasteful number, since it uses less digits than its factorization.

203041241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15618570.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 203041241 is about 14249.2540506512. The cubic root of 203041241 is about 587.7528626918.

Adding to 203041241 its reverse (142140302), we get a palindrome (345181543).

The spelling of 203041241 in words is "two hundred three million, forty-one thousand, two hundred forty-one".

Divisors: 1 13 15618557 203041241