Base | Representation |
---|---|
bin | 10001011001011111… |
… | …000000100001011110 |
3 | 1210012220220202121201 |
4 | 101121133000201132 |
5 | 301224334420024 |
6 | 12325414150114 |
7 | 1230636216343 |
oct | 213137004136 |
9 | 53186822551 |
10 | 18681170014 |
11 | 7a17040591 |
12 | 375435233a |
13 | 19b93a8c70 |
14 | c930a27ca |
15 | 7450ab744 |
hex | 4597c085e |
18681170014 has 8 divisors (see below), whose sum is σ = 30177274680. Its totient is φ = 8622078456.
The previous prime is 18681169973. The next prime is 18681170017. The reversal of 18681170014 is 41007118681.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×186811700142 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18681170017) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359253244 + ... + 359253295.
It is an arithmetic number, because the mean of its divisors is an integer number (3772159335).
Almost surely, 218681170014 is an apocalyptic number.
18681170014 is a deficient number, since it is larger than the sum of its proper divisors (11496104666).
18681170014 is a wasteful number, since it uses less digits than its factorization.
18681170014 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 718506554.
The product of its (nonzero) digits is 10752, while the sum is 37.
Adding to 18681170014 its reverse (41007118681), we get a palindrome (59688288695).
The spelling of 18681170014 in words is "eighteen billion, six hundred eighty-one million, one hundred seventy thousand, fourteen".
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