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312442444 = 22659118529
BaseRepresentation
bin10010100111110…
…111111001001100
3210202220201110101
4102213313321030
51114441124234
651000420444
710512500626
oct2247677114
9722821411
10312442444
111504026a6
1288777724
134c9662b2
142d6d1c16
151c66a814
hex129f7e4c

312442444 has 12 divisors (see below), whose sum is σ = 547608600. Its totient is φ = 155982848.

The previous prime is 312442391. The next prime is 312442457. The reversal of 312442444 is 444244213.

312442444 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 56629 + ... + 61900.

It is an arithmetic number, because the mean of its divisors is an integer number (45634050).

Almost surely, 2312442444 is an apocalyptic number.

It is an amenable number.

312442444 is a deficient number, since it is larger than the sum of its proper divisors (235166156).

312442444 is a wasteful number, since it uses less digits than its factorization.

312442444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119192 (or 119190 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 312442444 is about 17676.0415251832. The cubic root of 312442444 is about 678.5627399853.

Adding to 312442444 its reverse (444244213), we get a palindrome (756686657).

The spelling of 312442444 in words is "three hundred twelve million, four hundred forty-two thousand, four hundred forty-four".

Divisors: 1 2 4 659 1318 2636 118529 237058 474116 78110611 156221222 312442444