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205104411 = 32191199441
BaseRepresentation
bin11000011100110…
…10010100011011
3112021221101100200
430032122110123
5410001320121
632204033243
75040234021
oct1416322433
9467841320
10205104411
11a5859a86
1258832823
1333653775
141d350711
1513016a26
hexc39a51b

205104411 has 12 divisors (see below), whose sum is σ = 311854920. Its totient is φ = 129539520.

The previous prime is 205104397. The next prime is 205104451. The reversal of 205104411 is 114401502.

205104411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 205104411 - 222 = 200910107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205104451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 599550 + ... + 599891.

It is an arithmetic number, because the mean of its divisors is an integer number (25987910).

Almost surely, 2205104411 is an apocalyptic number.

205104411 is a deficient number, since it is larger than the sum of its proper divisors (106750509).

205104411 is a wasteful number, since it uses less digits than its factorization.

205104411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199466 (or 1199463 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 205104411 is about 14321.4667894039. The cubic root of 205104411 is about 589.7369420043.

Adding to 205104411 its reverse (114401502), we get a palindrome (319505913).

The spelling of 205104411 in words is "two hundred five million, one hundred four thousand, four hundred eleven".

Divisors: 1 3 9 19 57 171 1199441 3598323 10794969 22789379 68368137 205104411