Base | Representation |
---|---|
bin | 100001010111… |
… | …110000110001 |
3 | 121110110010000 |
4 | 201113300301 |
5 | 4214414311 |
6 | 511300213 |
7 | 134233416 |
oct | 41276061 |
9 | 17413100 |
10 | 8748081 |
11 | 4a35621 |
12 | 2b1a669 |
13 | 1a73aa4 |
14 | 123a10d |
15 | b7c056 |
hex | 857c31 |
8748081 has 20 divisors (see below), whose sum is σ = 13839012. Its totient is φ = 5488128.
The previous prime is 8748043. The next prime is 8748097. The reversal of 8748081 is 1808478.
It can be written as a sum of positive squares in 2 ways, for example, as 5475600 + 3272481 = 2340^2 + 1809^2 .
It is not a de Polignac number, because 8748081 - 26 = 8748017 is a prime.
It is a super-2 number, since 2×87480812 = 153057842365122, which contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (8748001) 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 19 ways as a sum of consecutive naturals, for example, 1800 + ... + 4553.
Almost surely, 28748081 is an apocalyptic number.
8748081 is a gapful number since it is divisible by the number (81) formed by its first and last digit.
It is an amenable number.
8748081 is a deficient number, since it is larger than the sum of its proper divisors (5090931).
8748081 is a wasteful number, since it uses less digits than its factorization.
8748081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6382 (or 6373 counting only the distinct ones).
The product of its (nonzero) digits is 14336, while the sum is 36.
The square root of 8748081 is about 2957.7155035601. The cubic root of 8748081 is about 206.0491996100.
The spelling of 8748081 in words is "eight million, seven hundred forty-eight thousand, eighty-one".
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