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203241205 = 51714091697
BaseRepresentation
bin11000001110100…
…11011011110101
3112011102201112001
430013103123311
5404012204310
632100055301
75015343646
oct1407233365
9464381461
10203241205
11a47a7142
1258094531
133315068b
141cdc76cd
1512c9993a
hexc1d36f5

203241205 has 16 divisors (see below), whose sum is σ = 258571440. Its totient is φ = 152829952.

The previous prime is 203241191. The next prime is 203241221. The reversal of 203241205 is 502142302.

It can be written as a sum of positive squares in 8 ways, for example, as 264196 + 202977009 = 514^2 + 14247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-203241205 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118917 + ... + 120613.

It is an arithmetic number, because the mean of its divisors is an integer number (16160715).

Almost surely, 2203241205 is an apocalyptic number.

It is an amenable number.

203241205 is a deficient number, since it is larger than the sum of its proper divisors (55330235).

203241205 is a wasteful number, since it uses less digits than its factorization.

203241205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 203241205 is about 14256.2689719295. The cubic root of 203241205 is about 587.9457477287.

Adding to 203241205 its reverse (502142302), we get a palindrome (705383507).

The spelling of 203241205 in words is "two hundred three million, two hundred forty-one thousand, two hundred five".

Divisors: 1 5 17 85 1409 1697 7045 8485 23953 28849 119765 144245 2391073 11955365 40648241 203241205