Base | Representation |
---|---|
bin | 10101100110110110… |
… | …001111010111011111 |
3 | 2012212212111221101002 |
4 | 111212312033113133 |
5 | 340003241044411 |
6 | 14354051340515 |
7 | 1450632363440 |
oct | 254666172737 |
9 | 65785457332 |
10 | 23200331231 |
11 | 9925a89270 |
12 | 45b58b173b |
13 | 225973115c |
14 | 11a13592c7 |
15 | 90bbd233b |
hex | 566d8f5df |
23200331231 has 32 divisors (see below), whose sum is σ = 29415052800. Its totient is φ = 17774254080.
The previous prime is 23200331207. The next prime is 23200331249. The reversal of 23200331231 is 13213300232.
It is not a de Polignac number, because 23200331231 - 234 = 6020462047 is a prime.
It is a super-2 number, since 2×232003312312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23200331251) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1217231 + ... + 1236143.
It is an arithmetic number, because the mean of its divisors is an integer number (919220400).
Almost surely, 223200331231 is an apocalyptic number.
23200331231 is a deficient number, since it is larger than the sum of its proper divisors (6214721569).
23200331231 is a wasteful number, since it uses less digits than its factorization.
23200331231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19199.
The product of its (nonzero) digits is 648, while the sum is 20.
Adding to 23200331231 its reverse (13213300232), we get a palindrome (36413631463).
The spelling of 23200331231 in words is "twenty-three billion, two hundred million, three hundred thirty-one thousand, two hundred thirty-one".
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