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315330225 = 35273491721
BaseRepresentation
bin10010110010111…
…000111010110001
3210222100102202020
4102302320322301
51121211031400
651142342053
710546156050
oct2262707261
9728312666
10315330225
11151aa52a1
128972a929
1350437842
142dc44397
151ca3b2a0
hex12cb8eb1

315330225 has 48 divisors (see below), whose sum is σ = 597878400. Its totient is φ = 143654400.

The previous prime is 315330193. The next prime is 315330227. The reversal of 315330225 is 522033513.

It is a happy number.

It is not a de Polignac number, because 315330225 - 25 = 315330193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315330195 and 315330204.

It is not an unprimeable number, because it can be changed into a prime (315330227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 182365 + ... + 184085.

It is an arithmetic number, because the mean of its divisors is an integer number (12455800).

Almost surely, 2315330225 is an apocalyptic number.

315330225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

315330225 is a deficient number, since it is larger than the sum of its proper divisors (282548175).

315330225 is a wasteful number, since it uses less digits than its factorization.

315330225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090 (or 2085 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 315330225 is about 17757.5399478644. The cubic root of 315330225 is about 680.6468937769.

Adding to 315330225 its reverse (522033513), we get a palindrome (837363738).

The spelling of 315330225 in words is "three hundred fifteen million, three hundred thirty thousand, two hundred twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 349 525 1047 1721 1745 2443 5163 5235 7329 8605 8725 12047 12215 25815 26175 36141 36645 43025 60235 61075 129075 180705 183225 301175 600629 903525 1801887 3003145 4204403 9009435 12613209 15015725 21022015 45047175 63066045 105110075 315330225