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312212324 = 22499156419
BaseRepresentation
bin10010100110111…
…111101101100100
3210202111000210102
4102212333231210
51114411243244
650551443232
710510522004
oct2246775544
9722430712
10312212324
11150265816
1288686518
134c8b5628
142d672004
151c62254e
hex129bfb64

312212324 has 12 divisors (see below), whose sum is σ = 547470000. Its totient is φ = 155792328.

The previous prime is 312212323. The next prime is 312212339. The reversal of 312212324 is 423212213.

It is a junction number, because it is equal to n+sod(n) for n = 312212296 and 312212305.

It is not an unprimeable number, because it can be changed into a prime (312212321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76214 + ... + 80205.

It is an arithmetic number, because the mean of its divisors is an integer number (45622500).

Almost surely, 2312212324 is an apocalyptic number.

It is an amenable number.

312212324 is a deficient number, since it is larger than the sum of its proper divisors (235257676).

312212324 is a wasteful number, since it uses less digits than its factorization.

312212324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156922 (or 156920 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 312212324 is about 17669.5309501979. The cubic root of 312212324 is about 678.3961074716.

Adding to 312212324 its reverse (423212213), we get a palindrome (735424537).

The spelling of 312212324 in words is "three hundred twelve million, two hundred twelve thousand, three hundred twenty-four".

Divisors: 1 2 4 499 998 1996 156419 312838 625676 78053081 156106162 312212324