Base | Representation |
---|---|
bin | 11110101011111… |
… | …00110001101001 |
3 | 122221100220011020 |
4 | 33111330301221 |
5 | 1011344142301 |
6 | 41313123053 |
7 | 6243652614 |
oct | 1725746151 |
9 | 587326136 |
10 | 257412201 |
11 | 122336662 |
12 | 72259489 |
13 | 41439417 |
14 | 2628917b |
15 | 178ea436 |
hex | f57cc69 |
257412201 has 4 divisors (see below), whose sum is σ = 343216272. Its totient is φ = 171608132.
The previous prime is 257412187. The next prime is 257412229. The reversal of 257412201 is 102214752.
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.
It is a cyclic number.
It is not a de Polignac number, because 257412201 - 213 = 257404009 is a prime.
It is a super-2 number, since 2×2574122012 = 132522082447328802, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (257412241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42902031 + ... + 42902036.
It is an arithmetic number, because the mean of its divisors is an integer number (85804068).
Almost surely, 2257412201 is an apocalyptic number.
It is an amenable number.
257412201 is a deficient number, since it is larger than the sum of its proper divisors (85804071).
257412201 is an equidigital number, since it uses as much as digits as its factorization.
257412201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 85804070.
The product of its (nonzero) digits is 1120, while the sum is 24.
The square root of 257412201 is about 16044.0705869801. The cubic root of 257412201 is about 636.1258477873.
Adding to 257412201 its reverse (102214752), we get a palindrome (359626953).
The spelling of 257412201 in words is "two hundred fifty-seven million, four hundred twelve thousand, two hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •