Base | Representation |
---|---|
bin | 1000010101111… |
… | …10100100001000 |
3 | 11212200200112010 |
4 | 10022332210020 |
5 | 120404032233 |
6 | 10540015520 |
7 | 1506606321 |
oct | 412764410 |
9 | 155620463 |
10 | 69986568 |
11 | 36561a43 |
12 | 1b5315a0 |
13 | 11665692 |
14 | 941b448 |
15 | 6226b63 |
hex | 42be908 |
69986568 has 16 divisors (see below), whose sum is σ = 174966480. Its totient is φ = 23328848.
The previous prime is 69986531. The next prime is 69986591. The reversal of 69986568 is 86568996.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 1458030 + ... + 1458077.
It is an arithmetic number, because the mean of its divisors is an integer number (10935405).
Almost surely, 269986568 is an apocalyptic number.
It is an amenable number.
69986568 is an abundant number, since it is smaller than the sum of its proper divisors (104979912).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69986568 is a wasteful number, since it uses less digits than its factorization.
69986568 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2916116 (or 2916112 counting only the distinct ones).
The product of its digits is 5598720, while the sum is 57.
The square root of 69986568 is about 8365.7975112956. The cubic root of 69986568 is about 412.1021677688.
The spelling of 69986568 in words is "sixty-nine million, nine hundred eighty-six thousand, five hundred sixty-eight".
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