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313352213 is a prime number
BaseRepresentation
bin10010101011010…
…110000000010101
3210211121221102112
4102223112000111
51120204232323
651032120405
710523310206
oct2253260025
9724557375
10313352213
11150974179
1288b36105
134cbc4415
142d88b5ad
151c79a178
hex12ad6015

313352213 has 2 divisors, whose sum is σ = 313352214. Its totient is φ = 313352212.

The previous prime is 313352201. The next prime is 313352231. The reversal of 313352213 is 312253313.

Together with next prime (313352231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311769649 + 1582564 = 17657^2 + 1258^2 .

It is a cyclic number.

It is not a de Polignac number, because 313352213 - 28 = 313351957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313352293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156676106 + 156676107.

It is an arithmetic number, because the mean of its divisors is an integer number (156676107).

Almost surely, 2313352213 is an apocalyptic number.

It is an amenable number.

313352213 is a deficient number, since it is larger than the sum of its proper divisors (1).

313352213 is an equidigital number, since it uses as much as digits as its factorization.

313352213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 23.

The square root of 313352213 is about 17701.7573421398. The cubic root of 313352213 is about 679.2207141067.

The spelling of 313352213 in words is "three hundred thirteen million, three hundred fifty-two thousand, two hundred thirteen".