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204969291 = 3411666417
BaseRepresentation
bin11000011011110…
…01010101001011
3112021200112000020
430031321111023
5404433004131
632201111523
75036132052
oct1415712513
9467615006
10204969291
11a577750a
12587885a3
1333607107
141d317399
1512edb996
hexc37954b

204969291 has 8 divisors (see below), whose sum is σ = 279958224. Its totient is φ = 133313280.

The previous prime is 204969263. The next prime is 204969293. The reversal of 204969291 is 192969402.

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

It is not a de Polignac number, because 204969291 - 26 = 204969227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204969293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833086 + ... + 833331.

It is an arithmetic number, because the mean of its divisors is an integer number (34994778).

Almost surely, 2204969291 is an apocalyptic number.

204969291 is a deficient number, since it is larger than the sum of its proper divisors (74988933).

204969291 is a wasteful number, since it uses less digits than its factorization.

204969291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666461.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 204969291 is about 14316.7486183141. The cubic root of 204969291 is about 589.6074099932.

The spelling of 204969291 in words is "two hundred four million, nine hundred sixty-nine thousand, two hundred ninety-one".

Divisors: 1 3 41 123 1666417 4999251 68323097 204969291