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306316241 = 71129137177
BaseRepresentation
bin10010010000100…
…000001111010001
3210100101110212222
4102100200033101
51111404104431
650221230425
710406434160
oct2220401721
9710343788
10306316241
111479a8a20
1286702415
134b5cca1a
142c9793d7
151bd5a57b
hex124203d1

306316241 has 16 divisors (see below), whose sum is σ = 395072640. Its totient is φ = 230455680.

The previous prime is 306316237. The next prime is 306316247. The reversal of 306316241 is 142613603.

It is not a de Polignac number, because 306316241 - 22 = 306316237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 306316241.

It is not an unprimeable number, because it can be changed into a prime (306316247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66356 + ... + 70821.

It is an arithmetic number, because the mean of its divisors is an integer number (24692040).

Almost surely, 2306316241 is an apocalyptic number.

It is an amenable number.

306316241 is a deficient number, since it is larger than the sum of its proper divisors (88756399).

306316241 is a wasteful number, since it uses less digits than its factorization.

306316241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137224.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 306316241 is about 17501.8924976701. The cubic root of 306316241 is about 674.0984697945.

Adding to 306316241 its reverse (142613603), we get a palindrome (448929844).

The spelling of 306316241 in words is "three hundred six million, three hundred sixteen thousand, two hundred forty-one".

Divisors: 1 7 11 29 77 203 319 2233 137177 960239 1508947 3978133 10562629 27846931 43759463 306316241