Base | Representation |
---|---|
bin | 1100011010101110… |
… | …10100001011000000 |
3 | 122012121111202110001 |
4 | 12031113110023000 |
5 | 102123131313223 |
6 | 3021305445344 |
7 | 324130506013 |
oct | 61527241300 |
9 | 18177452401 |
10 | 6666666688 |
11 | 29111833a0 |
12 | 13607a0854 |
13 | 823236bb6 |
14 | 47358b37a |
15 | 2904239ad |
hex | 18d5d42c0 |
6666666688 has 56 divisors (see below), whose sum is σ = 15280776144. Its totient is φ = 2852044800.
The previous prime is 6666666661. The next prime is 6666666757. The reversal of 6666666688 is 8866666666.
It is a Harshad number since it is a multiple of its sum of digits (64).
It is a plaindrome in base 10.
It is a zygodrome in base 10.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266553 + ... + 290488.
Almost surely, 26666666688 is an apocalyptic number.
6666666688 is a gapful number since it is divisible by the number (68) formed by its first and last digit.
It is an amenable number.
6666666688 is an abundant number, since it is smaller than the sum of its proper divisors (8614109456).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6666666688 is a wasteful number, since it uses less digits than its factorization.
6666666688 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 557081 (or 557071 counting only the distinct ones).
The product of its digits is 107495424, while the sum is 64.
The square root of 6666666688 is about 81649.6582234121. The cubic root of 6666666688 is about 1882.0720597696.
The spelling of 6666666688 in words is "six billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred eighty-eight".
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