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315530427 = 3971084297
BaseRepresentation
bin10010110011101…
…001110010111011
3210222201121101010
4102303221302323
51121233433202
651150525003
710550651532
oct2263516273
9728647333
10315530427
11152121753
1289806763
13504a79c4
142dc97319
151ca7a76c
hex12ce9cbb

315530427 has 8 divisors (see below), whose sum is σ = 425044816. Its totient is φ = 208184832.

The previous prime is 315530419. The next prime is 315530437. The reversal of 315530427 is 724035513.

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

It is not a de Polignac number, because 315530427 - 23 = 315530419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315530394 and 315530403.

It is not an unprimeable number, because it can be changed into a prime (315530437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541858 + ... + 542439.

It is an arithmetic number, because the mean of its divisors is an integer number (53130602).

Almost surely, 2315530427 is an apocalyptic number.

315530427 is a deficient number, since it is larger than the sum of its proper divisors (109514389).

315530427 is a wasteful number, since it uses less digits than its factorization.

315530427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084397.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 315530427 is about 17763.1761518035. The cubic root of 315530427 is about 680.7909100392.

The spelling of 315530427 in words is "three hundred fifteen million, five hundred thirty thousand, four hundred twenty-seven".

Divisors: 1 3 97 291 1084297 3252891 105176809 315530427