Search a number
-
+
23230303031 = 132029880703
BaseRepresentation
bin10101101000101000…
…100100101100110111
32012221221220122221202
4111220220210230313
5340033424144111
614401042003115
71451445213665
oct255050445467
965857818852
1023230303031
11994099a551
12460394649b
1322629c6350
1411a531bc35
1590e652b3b
hex568a24b37

23230303031 has 8 divisors (see below), whose sum is σ = 25029607680. Its totient is φ = 21432763872.

The previous prime is 23230303001. The next prime is 23230303043. The reversal of 23230303031 is 13030303232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23230303031 - 226 = 23163194167 is a prime.

It is a super-2 number, since 2×232303030312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23230302994 and 23230303012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23230303001) 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 7 ways as a sum of consecutive naturals, for example, 413975 + ... + 466728.

It is an arithmetic number, because the mean of its divisors is an integer number (3128700960).

Almost surely, 223230303031 is an apocalyptic number.

23230303031 is a deficient number, since it is larger than the sum of its proper divisors (1799304649).

23230303031 is a wasteful number, since it uses less digits than its factorization.

23230303031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882745.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 23230303031 its reverse (13030303232), we get a palindrome (36260606263).

The spelling of 23230303031 in words is "twenty-three billion, two hundred thirty million, three hundred three thousand, thirty-one".

Divisors: 1 13 2029 26377 880703 11449139 1786946387 23230303031