Base | Representation |
---|---|
bin | 1100111110101110… |
… | …00011011011010010 |
3 | 122222122121221121100 |
4 | 12133113003123102 |
5 | 103232424303421 |
6 | 3111253005230 |
7 | 334455010023 |
oct | 63727033322 |
9 | 18878557540 |
10 | 6968587986 |
11 | 2a5664a328 |
12 | 1425923816 |
13 | 870958359 |
14 | 4a1700c4a |
15 | 2abbb1c26 |
hex | 19f5c36d2 |
6968587986 has 24 divisors (see below), whose sum is σ = 15104643840. Its totient is φ = 2321933976.
The previous prime is 6968587979. The next prime is 6968588069. The reversal of 6968587986 is 6897858696.
It is a happy number.
It is a super-2 number, since 2×69685879862 = 97122437037247072392, which contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30346 + ... + 121893.
It is an arithmetic number, because the mean of its divisors is an integer number (629360160).
Almost surely, 26968587986 is an apocalyptic number.
6968587986 is an abundant number, since it is smaller than the sum of its proper divisors (8136055854).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6968587986 is a wasteful number, since it uses less digits than its factorization.
6968587986 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 154790 (or 154787 counting only the distinct ones).
The product of its digits is 313528320, while the sum is 72.
The square root of 6968587986 is about 83478.0688923744. The cubic root of 6968587986 is about 1910.0655100289.
The spelling of 6968587986 in words is "six billion, nine hundred sixty-eight million, five hundred eighty-seven thousand, nine hundred eighty-six".
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