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315342212 = 2278835553
BaseRepresentation
bin10010110010111…
…011110110000100
3210222101001012012
4102302323312010
51121211422322
651142513352
710546236023
oct2262736604
9728331165
10315342212
111520032a9
1289735858
1350440133
142dc488ba
151ca3eae2
hex12cbbd84

315342212 has 6 divisors (see below), whose sum is σ = 551848878. Its totient is φ = 157671104.

The previous prime is 315342187. The next prime is 315342229. The reversal of 315342212 is 212243513.

315342212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 270799936 + 44542276 = 16456^2 + 6674^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39417773 + ... + 39417780.

It is an arithmetic number, because the mean of its divisors is an integer number (91974813).

Almost surely, 2315342212 is an apocalyptic number.

It is an amenable number.

315342212 is a deficient number, since it is larger than the sum of its proper divisors (236506666).

315342212 is a wasteful number, since it uses less digits than its factorization.

315342212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78835557 (or 78835555 counting only the distinct ones).

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

The square root of 315342212 is about 17757.8774632556. The cubic root of 315342212 is about 680.6555183978.

Adding to 315342212 its reverse (212243513), we get a palindrome (527585725).

The spelling of 315342212 in words is "three hundred fifteen million, three hundred forty-two thousand, two hundred twelve".

Divisors: 1 2 4 78835553 157671106 315342212