Base | Representation |
---|---|
bin | 101011111101… |
… | …0011001101100 |
3 | 1121100211210221 |
4 | 1113322121230 |
5 | 21344430430 |
6 | 2141541124 |
7 | 366612514 |
oct | 127723154 |
9 | 47324727 |
10 | 23045740 |
11 | 12010673 |
12 | 78747a4 |
13 | 4a0b843 |
14 | 30bc844 |
15 | 205357a |
hex | 15fa66c |
23045740 has 12 divisors (see below), whose sum is σ = 48396096. Its totient is φ = 9218288.
The previous prime is 23045723. The next prime is 23045753. The reversal of 23045740 is 4754032.
It is a super-2 number, since 2×230457402 = 1062212264295200, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576124 + ... + 576163.
It is an arithmetic number, because the mean of its divisors is an integer number (4033008).
Almost surely, 223045740 is an apocalyptic number.
23045740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23045740 is an abundant number, since it is smaller than the sum of its proper divisors (25350356).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23045740 is a wasteful number, since it uses less digits than its factorization.
23045740 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1152296 (or 1152294 counting only the distinct ones).
The product of its (nonzero) digits is 3360, while the sum is 25.
The square root of 23045740 is about 4800.5978794313. The cubic root of 23045740 is about 284.5750926837.
Adding to 23045740 its reverse (4754032), we get a palindrome (27799772).
The spelling of 23045740 in words is "twenty-three million, forty-five thousand, seven hundred forty".
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