Base | Representation |
---|---|
bin | 1100110101010111… |
… | …10000110101111000 |
3 | 122210011222220120221 |
4 | 12122223300311320 |
5 | 103102333141213 |
6 | 3055411225424 |
7 | 332513100631 |
oct | 63253606570 |
9 | 18704886527 |
10 | 6890130808 |
11 | 2a16332290 |
12 | 14035a8274 |
13 | 85a6182a2 |
14 | 49511a888 |
15 | 2a4d6538d |
hex | 19aaf0d78 |
6890130808 has 32 divisors (see below), whose sum is σ = 14147084160. Its totient is φ = 3119958880.
The previous prime is 6890130803. The next prime is 6890130859. The reversal of 6890130808 is 8080310986.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6890130803) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125710 + ... + 171997.
It is an arithmetic number, because the mean of its divisors is an integer number (442096380).
Almost surely, 26890130808 is an apocalyptic number.
It is an amenable number.
6890130808 is an abundant number, since it is smaller than the sum of its proper divisors (7256953352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6890130808 is a wasteful number, since it uses less digits than its factorization.
6890130808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 297987 (or 297983 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 43.
The square root of 6890130808 is about 83006.8118168624. The cubic root of 6890130808 is about 1902.8701596310.
The spelling of 6890130808 in words is "six billion, eight hundred ninety million, one hundred thirty thousand, eight hundred eight".
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