Base | Representation |
---|---|
bin | 1000011001011010101001 |
3 | 11010211120001 |
4 | 20121122221 |
5 | 1030420012 |
6 | 115103001 |
7 | 24465442 |
oct | 10313251 |
9 | 4124501 |
10 | 2201257 |
11 | 1273923 |
12 | 8a1a61 |
13 | 5c0c26 |
14 | 4142c9 |
15 | 2d7357 |
hex | 2196a9 |
2201257 has 4 divisors (see below), whose sum is σ = 2204496. Its totient is φ = 2198020.
The previous prime is 2201209. The next prime is 2201273. The reversal of 2201257 is 7521022.
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 an emirpimes, since its reverse is a distinct semiprime: 7521022 = 2 ⋅3760511.
It is a cyclic number.
It is not a de Polignac number, because 2201257 - 211 = 2199209 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2201357) 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, 163 + ... + 2104.
It is an arithmetic number, because the mean of its divisors is an integer number (551124).
22201257 is an apocalyptic number.
It is an amenable number.
2201257 is a deficient number, since it is larger than the sum of its proper divisors (3239).
2201257 is an equidigital number, since it uses as much as digits as its factorization.
2201257 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3238.
The product of its (nonzero) digits is 280, while the sum is 19.
The square root of 2201257 is about 1483.6633715233. The cubic root of 2201257 is about 130.0839103243.
Adding to 2201257 its reverse (7521022), we get a palindrome (9722279).
The spelling of 2201257 in words is "two million, two hundred one thousand, two hundred fifty-seven".
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