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323214143 = 727390359
BaseRepresentation
bin10011010000111…
…101101100111111
3211112011222110012
4103100331230333
51130220323033
652023333435
711003163200
oct2320755477
9745158405
10323214143
1115649a62a
12902b127b
1351c68195
1430cd75a7
151d597248
hex1343db3f

323214143 has 12 divisors (see below), whose sum is σ = 381138480. Its totient is φ = 273242592.

The previous prime is 323214139. The next prime is 323214161. The reversal of 323214143 is 341412323.

It is not a de Polignac number, because 323214143 - 22 = 323214139 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323214163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41603 + ... + 48756.

It is an arithmetic number, because the mean of its divisors is an integer number (31761540).

Almost surely, 2323214143 is an apocalyptic number.

323214143 is a deficient number, since it is larger than the sum of its proper divisors (57924337).

323214143 is an equidigital number, since it uses as much as digits as its factorization.

323214143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90446 (or 90439 counting only the distinct ones).

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

The square root of 323214143 is about 17978.1573861172. The cubic root of 323214143 is about 686.2727986250.

Adding to 323214143 its reverse (341412323), we get a palindrome (664626466).

The spelling of 323214143 in words is "three hundred twenty-three million, two hundred fourteen thousand, one hundred forty-three".

Divisors: 1 7 49 73 511 3577 90359 632513 4427591 6596207 46173449 323214143