Base | Representation |
---|---|
bin | 1110111010101011… |
… | …10011111010101001 |
3 | 202200010022101201100 |
4 | 13131111303322221 |
5 | 112400130342310 |
6 | 3402400512013 |
7 | 402312461604 |
oct | 73525637251 |
9 | 22603271640 |
10 | 8008449705 |
11 | 343a619883 |
12 | 167601b609 |
13 | 9a8211149 |
14 | 55d86733b |
15 | 31d118ec0 |
hex | 1dd573ea9 |
8008449705 has 12 divisors (see below), whose sum is σ = 13881312900. Its totient is φ = 4271173152.
The previous prime is 8008449667. The next prime is 8008449727. The reversal of 8008449705 is 5079448008.
8008449705 is a `hidden beast` number, since 80 + 0 + 84 + 497 + 0 + 5 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 4811225769 + 3197223936 = 69363^2 + 56544^2 .
It is not a de Polignac number, because 8008449705 - 27 = 8008449577 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 177965549 = 8008449705 / (8 + 0 + 0 + 8 + 4 + 4 + 9 + 7 + 0 + 5).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88982730 + ... + 88982819.
It is an arithmetic number, because the mean of its divisors is an integer number (1156776075).
Almost surely, 28008449705 is an apocalyptic number.
It is an amenable number.
8008449705 is a deficient number, since it is larger than the sum of its proper divisors (5872863195).
8008449705 is a wasteful number, since it uses less digits than its factorization.
8008449705 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 177965560 (or 177965557 counting only the distinct ones).
The product of its (nonzero) digits is 322560, while the sum is 45.
The square root of 8008449705 is about 89489.9419208662. The cubic root of 8008449705 is about 2000.7038943207.
The spelling of 8008449705 in words is "eight billion, eight million, four hundred forty-nine thousand, seven hundred five".
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