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313042212 = 22337414077
BaseRepresentation
bin10010101010001…
…010010100100100
3210211001012012000
4102222022110210
51120114322322
651021325300
710520546340
oct2252122444
9724035160
10313042212
1115078227a
1288a06830
134cb162a2
142d80a620
151c7383ac
hex12a8a524

313042212 has 48 divisors (see below), whose sum is σ = 927534720. Its totient is φ = 89440416.

The previous prime is 313042201. The next prime is 313042243. The reversal of 313042212 is 212240313.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206283 + ... + 207794.

It is an arithmetic number, because the mean of its divisors is an integer number (19323640).

Almost surely, 2313042212 is an apocalyptic number.

It is an amenable number.

313042212 is an abundant number, since it is smaller than the sum of its proper divisors (614492508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313042212 is a wasteful number, since it uses less digits than its factorization.

313042212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414097 (or 414089 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 313042212 is about 17692.9989543887. The cubic root of 313042212 is about 678.9966546556.

Adding to 313042212 its reverse (212240313), we get a palindrome (525282525).

The spelling of 313042212 in words is "three hundred thirteen million, forty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 414077 828154 1242231 1656308 2484462 2898539 3726693 4968924 5797078 7453386 8695617 11180079 11594156 14906772 17391234 22360158 26086851 34782468 44720316 52173702 78260553 104347404 156521106 313042212