Base | Representation |
---|---|
bin | 11100101110111… |
… | …11011010000101 |
3 | 121210120001022200 |
4 | 32113133122011 |
5 | 443201221411 |
6 | 35530145113 |
7 | 5654540361 |
oct | 1627373205 |
9 | 553501280 |
10 | 241038981 |
11 | 114073177 |
12 | 68882199 |
13 | 3ac25a21 |
14 | 240262a1 |
15 | 16263e56 |
hex | e5df685 |
241038981 has 30 divisors (see below), whose sum is σ = 372178950. Its totient is φ = 150146640.
The previous prime is 241038977. The next prime is 241038991. The reversal of 241038981 is 189830142.
It can be written as a sum of positive squares in only one way, i.e., 207792225 + 33246756 = 14415^2 + 5766^2 .
It is not a de Polignac number, because 241038981 - 22 = 241038977 is a prime.
It is a super-2 number, since 2×2410389812 = 116199580723036722, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (241038911) 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 29 ways as a sum of consecutive naturals, for example, 7775436 + ... + 7775466.
It is an arithmetic number, because the mean of its divisors is an integer number (12405965).
Almost surely, 2241038981 is an apocalyptic number.
It is an amenable number.
241038981 is a deficient number, since it is larger than the sum of its proper divisors (131139969).
241038981 is an frugal number, since it uses more digits than its factorization.
241038981 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 159 (or 63 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 36.
The square root of 241038981 is about 15525.4301389688. The cubic root of 241038981 is about 622.3419756622.
The spelling of 241038981 in words is "two hundred forty-one million, thirty-eight thousand, nine hundred eighty-one".
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