Base | Representation |
---|---|
bin | 101110101111… |
… | …100001001101 |
3 | 212001112022111 |
4 | 232233201031 |
5 | 11114101021 |
6 | 1114344021 |
7 | 206102536 |
oct | 56574115 |
9 | 25045274 |
10 | 12253261 |
11 | 6a0a069 |
12 | 412b011 |
13 | 2700367 |
14 | 18ad68d |
15 | 11208e1 |
hex | baf84d |
12253261 has 4 divisors (see below), whose sum is σ = 12260512. Its totient is φ = 12246012.
The previous prime is 12253259. The next prime is 12253279. The reversal of 12253261 is 16235221.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 12253261 - 21 = 12253259 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12253211) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400 + ... + 4966.
It is an arithmetic number, because the mean of its divisors is an integer number (3065128).
Almost surely, 212253261 is an apocalyptic number.
It is an amenable number.
12253261 is a deficient number, since it is larger than the sum of its proper divisors (7251).
12253261 is an equidigital number, since it uses as much as digits as its factorization.
12253261 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7250.
The product of its digits is 720, while the sum is 22.
The square root of 12253261 is about 3500.4658261437. The cubic root of 12253261 is about 230.5422680707.
Adding to 12253261 its reverse (16235221), we get a palindrome (28488482).
The spelling of 12253261 in words is "twelve million, two hundred fifty-three thousand, two hundred sixty-one".
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