Base | Representation |
---|---|
bin | 101011111001… |
… | …0001011001111 |
3 | 1121022010121001 |
4 | 1113302023033 |
5 | 21342341142 |
6 | 2141121131 |
7 | 366412342 |
oct | 127621317 |
9 | 47263531 |
10 | 23012047 |
11 | 11a98323 |
12 | 78591a7 |
13 | 49c93c6 |
14 | 30b0459 |
15 | 20485b7 |
hex | 15f22cf |
23012047 has 2 divisors, whose sum is σ = 23012048. Its totient is φ = 23012046.
The previous prime is 23011997. The next prime is 23012053. The reversal of 23012047 is 74021032.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 23012047 - 211 = 23009999 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23012057) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506023 + 11506024.
It is an arithmetic number, because the mean of its divisors is an integer number (11506024).
Almost surely, 223012047 is an apocalyptic number.
23012047 is a deficient number, since it is larger than the sum of its proper divisors (1).
23012047 is an equidigital number, since it uses as much as digits as its factorization.
23012047 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 336, while the sum is 19.
The square root of 23012047 is about 4797.0873454629. The cubic root of 23012047 is about 284.4363415875.
Adding to 23012047 its reverse (74021032), we get a palindrome (97033079).
The spelling of 23012047 in words is "twenty-three million, twelve thousand, forty-seven".
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