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320130315 = 32517418471
BaseRepresentation
bin10011000101001…
…100110100001011
3211022101022020100
4103011030310023
51123423132230
651433300443
710635030351
oct2305146413
9738338210
10320130315
1115478370a
128b264723
135142862b
14307337d1
151d188660
hex1314cd0b

320130315 has 24 divisors (see below), whose sum is σ = 587534688. Its totient is φ = 160692480.

The previous prime is 320130287. The next prime is 320130341. The reversal of 320130315 is 513031023.

320130315 is a `hidden beast` number, since 320 + 1 + 30 + 315 = 666.

It is not a de Polignac number, because 320130315 - 217 = 319999243 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208471 + ... + 210000.

It is an arithmetic number, because the mean of its divisors is an integer number (24480612).

Almost surely, 2320130315 is an apocalyptic number.

320130315 is a deficient number, since it is larger than the sum of its proper divisors (267404373).

320130315 is a wasteful number, since it uses less digits than its factorization.

320130315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418499 (or 418496 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 320130315 is about 17892.1858642258. The cubic root of 320130315 is about 684.0832142013.

Adding to 320130315 its reverse (513031023), we get a palindrome (833161338).

The spelling of 320130315 in words is "three hundred twenty million, one hundred thirty thousand, three hundred fifteen".

Divisors: 1 3 5 9 15 17 45 51 85 153 255 765 418471 1255413 2092355 3766239 6277065 7114007 18831195 21342021 35570035 64026063 106710105 320130315