Base | Representation |
---|---|
bin | 100000011001… |
… | …011110110101 |
3 | 120222111011212 |
4 | 200121132311 |
5 | 4133233411 |
6 | 502011205 |
7 | 132121610 |
oct | 40313665 |
9 | 16874155 |
10 | 8492981 |
11 | 48809a2 |
12 | 2a16b05 |
13 | 19b4943 |
14 | 11b1177 |
15 | b2b68b |
hex | 8197b5 |
8492981 has 8 divisors (see below), whose sum is σ = 10217280. Its totient is φ = 6896448.
The previous prime is 8492971. The next prime is 8492993. The reversal of 8492981 is 1892948.
8492981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 8492981 - 26 = 8492917 is a prime.
It is a super-2 number, since 2×84929812 = 144261452532722, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8492921) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31796 + ... + 32061.
It is an arithmetic number, because the mean of its divisors is an integer number (1277160).
Almost surely, 28492981 is an apocalyptic number.
It is an amenable number.
8492981 is a deficient number, since it is larger than the sum of its proper divisors (1724299).
8492981 is a wasteful number, since it uses less digits than its factorization.
8492981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63883.
The product of its digits is 41472, while the sum is 41.
The square root of 8492981 is about 2914.2719502476. The cubic root of 8492981 is about 204.0265648476.
The spelling of 8492981 in words is "eight million, four hundred ninety-two thousand, nine hundred eighty-one".
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