Search a number
-
+
323111213 = 734426181
BaseRepresentation
bin10011010000100…
…100100100101101
3211111222202020222
4103100210210231
51130204024323
652021221125
711002254125
oct2320444455
9744882228
10323111213
1115642a267
12902617a5
1351c30389
1430cabc85
151d5769c8
hex1342492d

323111213 has 4 divisors (see below), whose sum is σ = 327537468. Its totient is φ = 318684960.

The previous prime is 323111209. The next prime is 323111249. The reversal of 323111213 is 312111323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 255904009 + 67207204 = 15997^2 + 8198^2 .

It is a cyclic number.

It is not a de Polignac number, because 323111213 - 22 = 323111209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323111191 and 323111200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323111203) 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, 2213018 + ... + 2213163.

It is an arithmetic number, because the mean of its divisors is an integer number (81884367).

Almost surely, 2323111213 is an apocalyptic number.

It is an amenable number.

323111213 is a deficient number, since it is larger than the sum of its proper divisors (4426255).

323111213 is an equidigital number, since it uses as much as digits as its factorization.

323111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4426254.

The product of its digits is 108, while the sum is 17.

The square root of 323111213 is about 17975.2945177541. The cubic root of 323111213 is about 686.1999412945.

Adding to 323111213 its reverse (312111323), we get a palindrome (635222536).

The spelling of 323111213 in words is "three hundred twenty-three million, one hundred eleven thousand, two hundred thirteen".

Divisors: 1 73 4426181 323111213