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317230216 = 2340996953
BaseRepresentation
bin10010111010001…
…000110010001000
3211002220222001021
4102322020302020
51122202331331
651251202224
710601261302
oct2272106210
9732828037
10317230216
11153082836
128a2a6374
13509515b4
14301ba972
151ccb4211
hex12e88c88

317230216 has 16 divisors (see below), whose sum is σ = 596267100. Its totient is φ = 158225664.

The previous prime is 317230189. The next prime is 317230219. The reversal of 317230216 is 612032713.

It can be written as a sum of positive squares in 2 ways, for example, as 252492100 + 64738116 = 15890^2 + 8046^2 .

It is not an unprimeable number, because it can be changed into a prime (317230219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45205 + ... + 51748.

Almost surely, 2317230216 is an apocalyptic number.

It is an amenable number.

317230216 is a deficient number, since it is larger than the sum of its proper divisors (279036884).

317230216 is a wasteful number, since it uses less digits than its factorization.

317230216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97368 (or 97364 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 317230216 is about 17810.9577507780. The cubic root of 317230216 is about 682.0112140295.

Adding to 317230216 its reverse (612032713), we get a palindrome (929262929).

The spelling of 317230216 in words is "three hundred seventeen million, two hundred thirty thousand, two hundred sixteen".

Divisors: 1 2 4 8 409 818 1636 3272 96953 193906 387812 775624 39653777 79307554 158615108 317230216