Base | Representation |
---|---|
bin | 10010001011110… |
… | …111010111010001 |
3 | 210021002200211221 |
4 | 102023313113101 |
5 | 1111101201431 |
6 | 50135205041 |
7 | 10363211035 |
oct | 2213672721 |
9 | 707080757 |
10 | 305100241 |
11 | 147248366 |
12 | 86216781 |
13 | 4b2953b4 |
14 | 2c7401c5 |
15 | 1bbba111 |
hex | 122f75d1 |
305100241 has 4 divisors (see below), whose sum is σ = 323047332. Its totient is φ = 287153152.
The previous prime is 305100239. The next prime is 305100253. The reversal of 305100241 is 142001503.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142001503 = 7 ⋅20285929.
It can be written as a sum of positive squares in 2 ways, for example, as 280060225 + 25040016 = 16735^2 + 5004^2 .
It is a cyclic number.
It is not a de Polignac number, because 305100241 - 21 = 305100239 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (305100041) 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, 8973520 + ... + 8973553.
It is an arithmetic number, because the mean of its divisors is an integer number (80761833).
Almost surely, 2305100241 is an apocalyptic number.
It is an amenable number.
305100241 is a deficient number, since it is larger than the sum of its proper divisors (17947091).
305100241 is a wasteful number, since it uses less digits than its factorization.
305100241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17947090.
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 305100241 is about 17467.1188522893. The cubic root of 305100241 is about 673.2052852335.
Adding to 305100241 its reverse (142001503), we get a palindrome (447101744).
The spelling of 305100241 in words is "three hundred five million, one hundred thousand, two hundred forty-one".
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