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1324230431 = 2213598387
BaseRepresentation
bin100111011101110…
…0010011100011111
310102021202212122112
41032323202130133
510203000333211
6335222504235
744546526056
oct11673423437
93367685575
101324230431
1161a547a17
1230b59507b
1318146cb04
14c7c2b39d
157b3c988b
hex4eee271f

1324230431 has 4 divisors (see below), whose sum is σ = 1324831032. Its totient is φ = 1323629832.

The previous prime is 1324230373. The next prime is 1324230449. The reversal of 1324230431 is 1340324231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1340324231 = 4313109801.

It is a cyclic number.

It is not a de Polignac number, because 1324230431 - 26 = 1324230367 is a prime.

It is a super-2 number, since 2×13242304312 = 3507172468772891522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1324230397 and 1324230406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324230461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296981 + ... + 301406.

It is an arithmetic number, because the mean of its divisors is an integer number (331207758).

Almost surely, 21324230431 is an apocalyptic number.

1324230431 is a deficient number, since it is larger than the sum of its proper divisors (600601).

1324230431 is an equidigital number, since it uses as much as digits as its factorization.

1324230431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600600.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1324230431 is about 36389.9770678686. The cubic root of 1324230431 is about 1098.1319343278.

Adding to 1324230431 its reverse (1340324231), we get a palindrome (2664554662).

The spelling of 1324230431 in words is "one billion, three hundred twenty-four million, two hundred thirty thousand, four hundred thirty-one".

Divisors: 1 2213 598387 1324230431