Base | Representation |
---|---|
bin | 101011110111… |
… | …1011010100100 |
3 | 1121021120002021 |
4 | 1113233122210 |
5 | 21342010430 |
6 | 2140552524 |
7 | 366334360 |
oct | 127573244 |
9 | 47246067 |
10 | 23000740 |
11 | 11a8a884 |
12 | 7852744 |
13 | 49c4209 |
14 | 30aa2a0 |
15 | 204507a |
hex | 15ef6a4 |
23000740 has 24 divisors (see below), whose sum is σ = 55202112. Its totient is φ = 7885920.
The previous prime is 23000723. The next prime is 23000749. The reversal of 23000740 is 4700032.
It is not an unprimeable number, because it can be changed into a prime (23000749) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82006 + ... + 82285.
It is an arithmetic number, because the mean of its divisors is an integer number (2300088).
Almost surely, 223000740 is an apocalyptic number.
23000740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23000740 is an abundant number, since it is smaller than the sum of its proper divisors (32201372).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23000740 is a wasteful number, since it uses less digits than its factorization.
23000740 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 164307 (or 164305 counting only the distinct ones).
The product of its (nonzero) digits is 168, while the sum is 16.
The square root of 23000740 is about 4795.9086730254. The cubic root of 23000740 is about 284.3897478967.
Adding to 23000740 its reverse (4700032), we get a palindrome (27700772).
The spelling of 23000740 in words is "twenty-three million, seven hundred forty", and thus it is an aban number.
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