Base | Representation |
---|---|
bin | 101011110111… |
… | …1010000101001 |
3 | 1121021112012202 |
4 | 1113233100221 |
5 | 21342000410 |
6 | 2140545545 |
7 | 366332462 |
oct | 127572051 |
9 | 47245182 |
10 | 23000105 |
11 | 11a8a357 |
12 | 78522b5 |
13 | 49c3b3b |
14 | 30a9d69 |
15 | 2044ca5 |
hex | 15ef429 |
23000105 has 4 divisors (see below), whose sum is σ = 27600132. Its totient is φ = 18400080.
The previous prime is 23000101. The next prime is 23000113. The reversal of 23000105 is 50100032.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 12222016 + 10778089 = 3496^2 + 3283^2 .
It is not a de Polignac number, because 23000105 - 22 = 23000101 is a prime.
It is a super-2 number, since 2×230001052 = 1058009660022050, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (23000101) 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, 2300006 + ... + 2300015.
It is an arithmetic number, because the mean of its divisors is an integer number (6900033).
Almost surely, 223000105 is an apocalyptic number.
It is an amenable number.
23000105 is a deficient number, since it is larger than the sum of its proper divisors (4600027).
23000105 is an equidigital number, since it uses as much as digits as its factorization.
23000105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4600026.
The product of its (nonzero) digits is 30, while the sum is 11.
The square root of 23000105 is about 4795.8424703070. The cubic root of 23000105 is about 284.3871307469.
Adding to 23000105 its reverse (50100032), we get a palindrome (73100137).
The spelling of 23000105 in words is "twenty-three million, one hundred five", and thus it is an aban number.
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