Base | Representation |
---|---|
bin | 101100010000… |
… | …0010111100011 |
3 | 1121122202010121 |
4 | 1120200113203 |
5 | 21414420001 |
6 | 2145141111 |
7 | 401131063 |
oct | 130402743 |
9 | 47582117 |
10 | 23201251 |
11 | 12107497 |
12 | 792a797 |
13 | 4a64568 |
14 | 311d3a3 |
15 | 20846a1 |
hex | 16205e3 |
23201251 has 2 divisors, whose sum is σ = 23201252. Its totient is φ = 23201250.
The previous prime is 23201197. The next prime is 23201263. The reversal of 23201251 is 15210232.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-23201251 is a prime.
It is not a weakly prime, because it can be changed into another prime (23201291) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600625 + 11600626.
It is an arithmetic number, because the mean of its divisors is an integer number (11600626).
Almost surely, 223201251 is an apocalyptic number.
23201251 is a deficient number, since it is larger than the sum of its proper divisors (1).
23201251 is an equidigital number, since it uses as much as digits as its factorization.
23201251 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 23201251 is about 4816.7676921355. The cubic root of 23201251 is about 285.2137557156.
Adding to 23201251 its reverse (15210232), we get a palindrome (38411483).
The spelling of 23201251 in words is "twenty-three million, two hundred one thousand, two hundred fifty-one".
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