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315304253 = 11171686119
BaseRepresentation
bin10010110010110…
…010100100111101
3210222022010010022
4102302302210331
51121204214003
651142021525
710546020245
oct2262624475
9728263108
10315304253
11151a87830
12897178a5
1350428a84
142dc38b25
151ca33738
hex12cb293d

315304253 has 8 divisors (see below), whose sum is σ = 364201920. Its totient is φ = 269778880.

The previous prime is 315304243. The next prime is 315304273. The reversal of 315304253 is 352403513.

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

It is a cyclic number.

It is not a de Polignac number, because 315304253 - 216 = 315238717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315304243) 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, 842873 + ... + 843246.

It is an arithmetic number, because the mean of its divisors is an integer number (45525240).

Almost surely, 2315304253 is an apocalyptic number.

It is an amenable number.

315304253 is a deficient number, since it is larger than the sum of its proper divisors (48897667).

315304253 is a wasteful number, since it uses less digits than its factorization.

315304253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686147.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 315304253 is about 17756.8086378155. The cubic root of 315304253 is about 680.6282062285.

Adding to 315304253 its reverse (352403513), we get a palindrome (667707766).

The spelling of 315304253 in words is "three hundred fifteen million, three hundred four thousand, two hundred fifty-three".

Divisors: 1 11 17 187 1686119 18547309 28664023 315304253