Base | Representation |
---|---|
bin | 111011100101… |
… | …1010011111101 |
3 | 2011210020020110 |
4 | 1313023103331 |
5 | 30444211334 |
6 | 3033340233 |
7 | 526356000 |
oct | 167132375 |
9 | 64706213 |
10 | 31241469 |
11 | 166a91a6 |
12 | a567679 |
13 | 661b09c |
14 | 4213537 |
15 | 2b21ae9 |
hex | 1dcb4fd |
31241469 has 32 divisors (see below), whose sum is σ = 49235200. Its totient is φ = 17611776.
The previous prime is 31241443. The next prime is 31241473. The reversal of 31241469 is 96414213.
It is not a de Polignac number, because 31241469 - 215 = 31208701 is a prime.
It is a super-2 number, since 2×312414692 = 1952058770555922, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31241369) 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 31 ways as a sum of consecutive naturals, for example, 99657 + ... + 99969.
It is an arithmetic number, because the mean of its divisors is an integer number (1538600).
Almost surely, 231241469 is an apocalyptic number.
It is an amenable number.
31241469 is a deficient number, since it is larger than the sum of its proper divisors (17993731).
31241469 is an equidigital number, since it uses as much as digits as its factorization.
31241469 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 434 (or 420 counting only the distinct ones).
The product of its digits is 5184, while the sum is 30.
The square root of 31241469 is about 5589.4068558301. The cubic root of 31241469 is about 314.9515975012.
The spelling of 31241469 in words is "thirty-one million, two hundred forty-one thousand, four hundred sixty-nine".
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