Base | Representation |
---|---|
bin | 1100011110010000… |
… | …01100110001100100 |
3 | 122021200012012000000 |
4 | 12033020030301210 |
5 | 102203220234120 |
6 | 3024244021300 |
7 | 324640155000 |
oct | 61710146144 |
9 | 18250165000 |
10 | 6696258660 |
11 | 2926955273 |
12 | 136a691830 |
13 | 8293c8240 |
14 | 477491700 |
15 | 292d1b990 |
hex | 18f20cc64 |
6696258660 has 672 divisors, whose sum is σ = 26735654400. Its totient is φ = 1399120128.
The previous prime is 6696258649. The next prime is 6696258661. The reversal of 6696258660 is 668526966.
6696258660 is a `hidden beast` number, since 6 + 6 + 9 + 625 + 8 + 6 + 6 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a junction number, because it is equal to n+sod(n) for n = 6696258597 and 6696258606.
It is not an unprimeable number, because it can be changed into a prime (6696258661) by changing a digit.
It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 65012169 + ... + 65012271.
It is an arithmetic number, because the mean of its divisors is an integer number (39785200).
Almost surely, 26696258660 is an apocalyptic number.
6696258660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 6696258660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13367827200).
6696258660 is an abundant number, since it is smaller than the sum of its proper divisors (20039395740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6696258660 is a wasteful number, since it uses less digits than its factorization.
6696258660 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 164 (or 133 counting only the distinct ones).
The product of its (nonzero) digits is 5598720, while the sum is 54.
The square root of 6696258660 is about 81830.6706559344. The cubic root of 6696258660 is about 1884.8526608212.
It can be divided in two parts, 6696 and 258660, that added together give a triangular number (265356 = T728).
The spelling of 6696258660 in words is "six billion, six hundred ninety-six million, two hundred fifty-eight thousand, six hundred sixty".
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