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313320423 = 31321973137
BaseRepresentation
bin10010101011001…
…110001111100111
3210211120022211010
4102223032033213
51120202223143
651031313303
710523115423
oct2253161747
9724508733
10313320423
111509522a9
1288b1b833
134cbb2b00
142d87db83
151c790a33
hex12ace3e7

313320423 has 24 divisors (see below), whose sum is σ = 454809168. Its totient is φ = 191772672.

The previous prime is 313320407. The next prime is 313320443. The reversal of 313320423 is 324023313.

It is not a de Polignac number, because 313320423 - 24 = 313320407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313320423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313320443) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 98311 + ... + 101447.

It is an arithmetic number, because the mean of its divisors is an integer number (18950382).

Almost surely, 2313320423 is an apocalyptic number.

313320423 is a deficient number, since it is larger than the sum of its proper divisors (141488745).

313320423 is a wasteful number, since it uses less digits than its factorization.

313320423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363 (or 3350 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 313320423 is about 17700.8593859168. The cubic root of 313320423 is about 679.1977440474.

Adding to 313320423 its reverse (324023313), we get a palindrome (637343736).

The spelling of 313320423 in words is "three hundred thirteen million, three hundred twenty thousand, four hundred twenty-three".

Divisors: 1 3 13 39 169 197 507 591 2561 3137 7683 9411 33293 40781 99879 122343 530153 617989 1590459 1853967 8033857 24101571 104440141 313320423