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312683297 is a prime number
BaseRepresentation
bin10010101000110…
…010101100100001
3210210100221211212
4102220302230201
51120021331142
651005515505
710514523053
oct2250625441
9723327755
10312683297
11150557653
1288872b95
134ca1bb04
142d7558d3
151c6b6d82
hex12a32b21

312683297 has 2 divisors, whose sum is σ = 312683298. Its totient is φ = 312683296.

The previous prime is 312683279. The next prime is 312683311. The reversal of 312683297 is 792386213.

Together with previous prime (312683279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312617761 + 65536 = 17681^2 + 256^2 .

It is a cyclic number.

It is not a de Polignac number, because 312683297 - 26 = 312683233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (312683797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156341648 + 156341649.

It is an arithmetic number, because the mean of its divisors is an integer number (156341649).

Almost surely, 2312683297 is an apocalyptic number.

It is an amenable number.

312683297 is a deficient number, since it is larger than the sum of its proper divisors (1).

312683297 is an equidigital number, since it uses as much as digits as its factorization.

312683297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 41.

The square root of 312683297 is about 17682.8531917222. The cubic root of 312683297 is about 678.7370567779.

The spelling of 312683297 in words is "three hundred twelve million, six hundred eighty-three thousand, two hundred ninety-seven".