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315300225 = 35231135613
BaseRepresentation
bin10010110010110…
…001100110000001
3210222021220121010
4102302301212001
51121204101400
651141551133
710546002432
oct2262614601
9728256533
10315300225
11151a847a9
12897154a9
1350426ca6
142dc37489
151ca32450
hex12cb1981

315300225 has 24 divisors (see below), whose sum is σ = 538116352. Its totient is φ = 162734400.

The previous prime is 315300221. The next prime is 315300229. The reversal of 315300225 is 522003513.

It is an interprime number because it is at equal distance from previous prime (315300221) and next prime (315300229).

It is not a de Polignac number, because 315300225 - 22 = 315300221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315300221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65482 + ... + 70131.

Almost surely, 2315300225 is an apocalyptic number.

It is an amenable number.

315300225 is a deficient number, since it is larger than the sum of its proper divisors (222816127).

315300225 is a wasteful number, since it uses less digits than its factorization.

315300225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135657 (or 135652 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 315300225 is about 17756.6952161713. The cubic root of 315300225 is about 680.6253078829.

Adding to 315300225 its reverse (522003513), we get a palindrome (837303738).

The spelling of 315300225 in words is "three hundred fifteen million, three hundred thousand, two hundred twenty-five".

Divisors: 1 3 5 15 25 31 75 93 155 465 775 2325 135613 406839 678065 2034195 3390325 4204003 10170975 12612009 21020015 63060045 105100075 315300225