Base | Representation |
---|---|
bin | 10010110101110011… |
… | …011100101010011111 |
3 | 1221012212101002212121 |
4 | 102311303130222133 |
5 | 312412342011111 |
6 | 13143223443411 |
7 | 1314214302136 |
oct | 226563345237 |
9 | 57185332777 |
10 | 20230032031 |
11 | 8641364540 |
12 | 3b06bb6567 |
13 | 1ba5248671 |
14 | d9ca8491d |
15 | 7d6058871 |
hex | 4b5cdca9f |
20230032031 has 4 divisors (see below), whose sum is σ = 22069125864. Its totient is φ = 18390938200.
The previous prime is 20230031993. The next prime is 20230032037. The reversal of 20230032031 is 13023003202.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 20230032031 - 219 = 20229507743 is a prime.
It is a super-2 number, since 2×202300320312 (a number of 21 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 = 20230031996 and 20230032014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20230032037) 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, 919546900 + ... + 919546921.
It is an arithmetic number, because the mean of its divisors is an integer number (5517281466).
Almost surely, 220230032031 is an apocalyptic number.
20230032031 is a deficient number, since it is larger than the sum of its proper divisors (1839093833).
20230032031 is a wasteful number, since it uses less digits than its factorization.
20230032031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1839093832.
The product of its (nonzero) digits is 216, while the sum is 16.
Adding to 20230032031 its reverse (13023003202), we get a palindrome (33253035233).
The spelling of 20230032031 in words is "twenty billion, two hundred thirty million, thirty-two thousand, thirty-one".
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