Base | Representation |
---|---|
bin | 101011111000… |
… | …1001001010110 |
3 | 1121021220210212 |
4 | 1113301021112 |
5 | 21342222310 |
6 | 2141045422 |
7 | 366364136 |
oct | 127611126 |
9 | 47256725 |
10 | 23007830 |
11 | 11a9513a |
12 | 7856872 |
13 | 49c7501 |
14 | 30acac6 |
15 | 2047205 |
hex | 15f1256 |
23007830 has 16 divisors (see below), whose sum is σ = 42196464. Its totient is φ = 9029280.
The previous prime is 23007823. The next prime is 23007833. The reversal of 23007830 is 3870032.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 23007796 and 23007805.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23007833) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21176 + ... + 22235.
It is an arithmetic number, because the mean of its divisors is an integer number (2637279).
Almost surely, 223007830 is an apocalyptic number.
23007830 is a deficient number, since it is larger than the sum of its proper divisors (19188634).
23007830 is a wasteful number, since it uses less digits than its factorization.
23007830 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 43471.
The product of its (nonzero) digits is 1008, while the sum is 23.
The square root of 23007830 is about 4796.6477877785. The cubic root of 23007830 is about 284.4189660316.
Adding to 23007830 its reverse (3870032), we get a palindrome (26877862).
The spelling of 23007830 in words is "twenty-three million, seven thousand, eight hundred thirty".
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