Base | Representation |
---|---|
bin | 10101100110110101… |
… | …110010010100000111 |
3 | 2012212212021220010200 |
4 | 111212311302110013 |
5 | 340003223242411 |
6 | 14354045021543 |
7 | 1450631356500 |
oct | 254665622407 |
9 | 65785256120 |
10 | 23200212231 |
11 | 9925a07919 |
12 | 45b58548b3 |
13 | 22596bbc41 |
14 | 11a1327ba7 |
15 | 90bbabe56 |
hex | 566d72507 |
23200212231 has 72 divisors (see below), whose sum is σ = 40118392080. Its totient is φ = 12872514816.
The previous prime is 23200212223. The next prime is 23200212241. The reversal of 23200212231 is 13221200232.
23200212231 is a `hidden beast` number, since 23 + 200 + 212 + 231 = 666.
It is not a de Polignac number, because 23200212231 - 23 = 23200212223 is a prime.
It is a super-2 number, since 2×232002122312 (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 (23200212221) by changing a digit.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10099075 + ... + 10101371.
It is an arithmetic number, because the mean of its divisors is an integer number (557199890).
Almost surely, 223200212231 is an apocalyptic number.
23200212231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
23200212231 is a deficient number, since it is larger than the sum of its proper divisors (16918179849).
23200212231 is a wasteful number, since it uses less digits than its factorization.
23200212231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2973 (or 2963 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 23200212231 its reverse (13221200232), we get a palindrome (36421412463).
The spelling of 23200212231 in words is "twenty-three billion, two hundred million, two hundred twelve thousand, two hundred thirty-one".
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