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203241361 = 1344115121
BaseRepresentation
bin11000001110100…
…11011110010001
3112011102201201211
430013103132101
5404012210421
632100100121
75015344261
oct1407233621
9464381654
10203241361
11a47a7274
1258094641
133315077b
141cdc77a1
1512c999e1
hexc1d3791

203241361 has 4 divisors (see below), whose sum is σ = 203269924. Its totient is φ = 203212800.

The previous prime is 203241323. The next prime is 203241377. The reversal of 203241361 is 163142302.

203241361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 35046400 + 168194961 = 5920^2 + 12969^2 .

It is a 4-Lehmer number, since φ(203241361) divides (203241361-1)4.

It is a cyclic number.

It is not a de Polignac number, because 203241361 - 223 = 194852753 is a prime.

It is a super-2 number, since 2×2032413612 = 82614101642264642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203241161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5881 + ... + 21001.

It is an arithmetic number, because the mean of its divisors is an integer number (50817481).

Almost surely, 2203241361 is an apocalyptic number.

It is an amenable number.

203241361 is a deficient number, since it is larger than the sum of its proper divisors (28563).

203241361 is a wasteful number, since it uses less digits than its factorization.

203241361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28562.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 203241361 is about 14256.2744432057. The cubic root of 203241361 is about 587.9458981567.

Adding to 203241361 its reverse (163142302), we get a palindrome (366383663).

The spelling of 203241361 in words is "two hundred three million, two hundred forty-one thousand, three hundred sixty-one".

Divisors: 1 13441 15121 203241361