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2320423031 = 17489132679
BaseRepresentation
bin1000101001001110…
…1101100001110111
312222201021200222202
42022103231201313
514223012014111
61022130415115
7111334161503
oct21223554167
95881250882
102320423031
11a90900193
1254913149b
132ac975ca4
14180267303
15d8aa7b3b
hex8a4ed877

2320423031 has 4 divisors (see below), whose sum is σ = 2320573200. Its totient is φ = 2320272864.

The previous prime is 2320423019. The next prime is 2320423073. The reversal of 2320423031 is 1303240232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2320423031 is a prime.

It is a super-2 number, since 2×23204230312 = 10768726085590453922, 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 = 2320422994 and 2320423012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320423531) 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 3 ways as a sum of consecutive naturals, for example, 48851 + ... + 83828.

It is an arithmetic number, because the mean of its divisors is an integer number (580143300).

Almost surely, 22320423031 is an apocalyptic number.

2320423031 is a deficient number, since it is larger than the sum of its proper divisors (150169).

2320423031 is a wasteful number, since it uses less digits than its factorization.

2320423031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150168.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2320423031 is about 48170.7694665551. The cubic root of 2320423031 is about 1323.9016469856.

Adding to 2320423031 its reverse (1303240232), we get a palindrome (3623663263).

The spelling of 2320423031 in words is "two billion, three hundred twenty million, four hundred twenty-three thousand, thirty-one".

Divisors: 1 17489 132679 2320423031