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204255105253 = 316839646961
BaseRepresentation
bin1011111000111010001…
…1011001000011100101
3201112012220000102120021
42332032203121003211
511321303301332003
6233500011435141
720520426514453
oct2761643310345
9645186012507
10204255105253
1179695755811
1233704755ab1
1316351a4cc34
149c5927d9d3
1554a6cdb2bd
hex2f8e8d90e5

204255105253 has 8 divisors (see below), whose sum is σ = 211152704256. Its totient is φ = 197376801600.

The previous prime is 204255105221. The next prime is 204255105259. The reversal of 204255105253 is 352501552402.

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

It is not a de Polignac number, because 204255105253 - 25 = 204255105221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204255105259) 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, 4802308 + ... + 4844653.

It is an arithmetic number, because the mean of its divisors is an integer number (26394088032).

Almost surely, 2204255105253 is an apocalyptic number.

It is an amenable number.

204255105253 is a deficient number, since it is larger than the sum of its proper divisors (6897599003).

204255105253 is an equidigital number, since it uses as much as digits as its factorization.

204255105253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9647675.

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 204255105253 its reverse (352501552402), we get a palindrome (556756657655).

The spelling of 204255105253 in words is "two hundred four billion, two hundred fifty-five million, one hundred five thousand, two hundred fifty-three".

Divisors: 1 31 683 21173 9646961 299055791 6588874363 204255105253