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315120315 = 3521008021
BaseRepresentation
bin10010110010000…
…101101010111011
3210221221202210210
4102302011222323
51121132322230
651134042203
710544323056
oct2262055273
9727852723
10315120315
11151971614
1289649363
1350393133
142dbcba9d
151c9e8eb0
hex12c85abb

315120315 has 8 divisors (see below), whose sum is σ = 504192528. Its totient is φ = 168064160.

The previous prime is 315120307. The next prime is 315120329. The reversal of 315120315 is 513021513.

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

It is not a de Polignac number, because 315120315 - 23 = 315120307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315120291 and 315120300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10503996 + ... + 10504025.

It is an arithmetic number, because the mean of its divisors is an integer number (63024066).

Almost surely, 2315120315 is an apocalyptic number.

315120315 is a deficient number, since it is larger than the sum of its proper divisors (189072213).

315120315 is a wasteful number, since it uses less digits than its factorization.

315120315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21008029.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 315120315 is about 17751.6285168432. The cubic root of 315120315 is about 680.4958285412.

Adding to 315120315 its reverse (513021513), we get a palindrome (828141828).

The spelling of 315120315 in words is "three hundred fifteen million, one hundred twenty thousand, three hundred fifteen".

Divisors: 1 3 5 15 21008021 63024063 105040105 315120315