Base | Representation |
---|---|
bin | 100001000110… |
… | …011001110101 |
3 | 121022211120200 |
4 | 201012121311 |
5 | 4210130411 |
6 | 505551113 |
7 | 133516215 |
oct | 41063165 |
9 | 17284520 |
10 | 8676981 |
11 | 4997165 |
12 | 2aa5499 |
13 | 1a4a611 |
14 | 121c245 |
15 | b65e56 |
hex | 846675 |
8676981 has 24 divisors (see below), whose sum is σ = 13089024. Its totient is φ = 5533920.
The previous prime is 8676973. The next prime is 8676991. The reversal of 8676981 is 1896768.
It is a happy number.
It is not a de Polignac number, because 8676981 - 23 = 8676973 is a prime.
It is a super-2 number, since 2×86769812 = 150579998548722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8676971) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23460 + ... + 23826.
It is an arithmetic number, because the mean of its divisors is an integer number (545376).
Almost surely, 28676981 is an apocalyptic number.
It is an amenable number.
8676981 is a deficient number, since it is larger than the sum of its proper divisors (4412043).
8676981 is a wasteful number, since it uses less digits than its factorization.
8676981 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 481 (or 478 counting only the distinct ones).
The product of its digits is 145152, while the sum is 45.
The square root of 8676981 is about 2945.6715702875. The cubic root of 8676981 is about 205.4894590292.
The spelling of 8676981 in words is "eight million, six hundred seventy-six thousand, nine hundred eighty-one".
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