Base | Representation |
---|---|
bin | 101111110100111… |
… | …001001000111001 |
3 | 2001220211212120112 |
4 | 233310321020321 |
5 | 3120403112211 |
6 | 211342034105 |
7 | 25612146044 |
oct | 5764711071 |
9 | 2056755515 |
10 | 802394681 |
11 | 381a27000 |
12 | 1a4878935 |
13 | ca310b6a |
14 | 787cdc5b |
15 | 4a69b88b |
hex | 2fd39239 |
802394681 has 16 divisors (see below), whose sum is σ = 929054400. Its totient is φ = 691035840.
The previous prime is 802394647. The next prime is 802394683. The reversal of 802394681 is 186493208.
It is a de Polignac number, because none of the positive numbers 2k-802394681 is a prime.
It is a super-2 number, since 2×8023946812 = 1287674448194183522, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (802394683) 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 15 ways as a sum of consecutive naturals, for example, 9425 + ... + 41153.
It is an arithmetic number, because the mean of its divisors is an integer number (58065900).
Almost surely, 2802394681 is an apocalyptic number.
It is an amenable number.
802394681 is a deficient number, since it is larger than the sum of its proper divisors (126659719).
802394681 is a wasteful number, since it uses less digits than its factorization.
802394681 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 31781 (or 31759 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 41.
The square root of 802394681 is about 28326.5719952133. The cubic root of 802394681 is about 929.2431044313.
The spelling of 802394681 in words is "eight hundred two million, three hundred ninety-four thousand, six hundred eighty-one".
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