Base | Representation |
---|---|
bin | 10010001011111… |
… | …000100001101001 |
3 | 210021002221101020 |
4 | 102023320201221 |
5 | 1111101330001 |
6 | 50135243053 |
7 | 10363230645 |
oct | 2213704151 |
9 | 707087336 |
10 | 305105001 |
11 | 1472509a3 |
12 | 86219489 |
13 | 4b297606 |
14 | 2c741c25 |
15 | 1bbbb736 |
hex | 122f8869 |
305105001 has 16 divisors (see below), whose sum is σ = 431132544. Its totient is φ = 191262464.
The previous prime is 305104999. The next prime is 305105039. The reversal of 305105001 is 100501503.
It is a cyclic number.
It is not a de Polignac number, because 305105001 - 21 = 305104999 is a prime.
It is not an unprimeable number, because it can be changed into a prime (304105001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74140 + ... + 78146.
It is an arithmetic number, because the mean of its divisors is an integer number (26945784).
Almost surely, 2305105001 is an apocalyptic number.
It is an amenable number.
305105001 is a deficient number, since it is larger than the sum of its proper divisors (126027543).
305105001 is a wasteful number, since it uses less digits than its factorization.
305105001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5520.
The product of its (nonzero) digits is 75, while the sum is 15.
The square root of 305105001 is about 17467.2551077724. The cubic root of 305105001 is about 673.2087862037.
Adding to 305105001 its reverse (100501503), we get a palindrome (405606504).
It can be divided in two parts, 30510 and 5001, that added together give a triangular number (35511 = T266).
The spelling of 305105001 in words is "three hundred five million, one hundred five thousand, one".
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