Base | Representation |
---|---|
bin | 101101011001… |
… | …0100011000101 |
3 | 1122210011110200 |
4 | 1122302203011 |
5 | 22043100010 |
6 | 2210041113 |
7 | 406203525 |
oct | 132624305 |
9 | 48704420 |
10 | 23800005 |
11 | 12486329 |
12 | 7b79199 |
13 | 4c13c58 |
14 | 3237685 |
15 | 2151cc0 |
hex | 16b28c5 |
23800005 has 24 divisors (see below), whose sum is σ = 41513472. Its totient is φ = 12613344.
The previous prime is 23799973. The next prime is 23800031. The reversal of 23800005 is 50000832.
It is not a de Polignac number, because 23800005 - 25 = 23799973 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5932 + ... + 9098.
It is an arithmetic number, because the mean of its divisors is an integer number (1729728).
Almost surely, 223800005 is an apocalyptic number.
It is an amenable number.
23800005 is a deficient number, since it is larger than the sum of its proper divisors (17713467).
23800005 is a wasteful number, since it uses less digits than its factorization.
23800005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3345 (or 3342 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 23800005 is about 4878.5248795102. The cubic root of 23800005 is about 287.6464483880.
Adding to 23800005 its reverse (50000832), we get a palindrome (73800837).
The spelling of 23800005 in words is "twenty-three million, eight hundred thousand, five".
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