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323144423 = 746163489
BaseRepresentation
bin10011010000101…
…100101011100111
3211112001102210222
4103100230223213
51130211110143
652022034555
711002453010
oct2320545347
9745042728
10323144423
11156452208
1290278a5b
1351c42524
1430cba007
151d581768
hex1342cae7

323144423 has 4 divisors (see below), whose sum is σ = 369307920. Its totient is φ = 276980928.

The previous prime is 323144407. The next prime is 323144429. The reversal of 323144423 is 324441323.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324441323 = 417913203.

It is not a de Polignac number, because 323144423 - 24 = 323144407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323144392 and 323144401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323144429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23081738 + ... + 23081751.

It is an arithmetic number, because the mean of its divisors is an integer number (92326980).

Almost surely, 2323144423 is an apocalyptic number.

323144423 is a deficient number, since it is larger than the sum of its proper divisors (46163497).

323144423 is an equidigital number, since it uses as much as digits as its factorization.

323144423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46163496.

The product of its digits is 6912, while the sum is 26.

The square root of 323144423 is about 17976.2182619148. The cubic root of 323144423 is about 686.2234501448.

Adding to 323144423 its reverse (324441323), we get a palindrome (647585746).

The spelling of 323144423 in words is "three hundred twenty-three million, one hundred forty-four thousand, four hundred twenty-three".

Divisors: 1 7 46163489 323144423