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312363212 = 22713185159
BaseRepresentation
bin10010100111100…
…100100011001100
3210202202200202212
4102213210203030
51114431110322
650555005552
710512020630
oct2247444314
9722680685
10312363212
11150359117
12887398b8
134c939205
142d6b0dc0
151c6520e2
hex129e48cc

312363212 has 24 divisors (see below), whose sum is σ = 629502720. Its totient is φ = 132846480.

The previous prime is 312363209. The next prime is 312363229. The reversal of 312363212 is 212363213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38912 + ... + 46247.

It is an arithmetic number, because the mean of its divisors is an integer number (26229280).

Almost surely, 2312363212 is an apocalyptic number.

It is an amenable number.

312363212 is an abundant number, since it is smaller than the sum of its proper divisors (317139508).

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

312363212 is a wasteful number, since it uses less digits than its factorization.

312363212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85301 (or 85299 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

The square root of 312363212 is about 17673.8001572950. The cubic root of 312363212 is about 678.5053764299.

Subtracting from 312363212 its reverse (212363213), we obtain a palindrome (99999999).

The spelling of 312363212 in words is "three hundred twelve million, three hundred sixty-three thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 131 262 524 917 1834 3668 85159 170318 340636 596113 1192226 2384452 11155829 22311658 44623316 78090803 156181606 312363212