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312541223 is a prime number
BaseRepresentation
bin10010101000010…
…000000000100111
3210210002201221212
4102220100000213
51120002304343
651002502035
710513361621
oct2250200047
9723081855
10312541223
1115046a935
128880491b
134c99c247
142d719c11
151c689c18
hex12a10027

312541223 has 2 divisors, whose sum is σ = 312541224. Its totient is φ = 312541222.

The previous prime is 312541217. The next prime is 312541249. The reversal of 312541223 is 322145213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312541223 - 220 = 311492647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312541283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156270611 + 156270612.

It is an arithmetic number, because the mean of its divisors is an integer number (156270612).

Almost surely, 2312541223 is an apocalyptic number.

312541223 is a deficient number, since it is larger than the sum of its proper divisors (1).

312541223 is an equidigital number, since it uses as much as digits as its factorization.

312541223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 312541223 is about 17678.8354537283. The cubic root of 312541223 is about 678.6342418867.

Adding to 312541223 its reverse (322145213), we get a palindrome (634686436).

The spelling of 312541223 in words is "three hundred twelve million, five hundred forty-one thousand, two hundred twenty-three".