Base | Representation |
---|---|
bin | 10001011001010001… |
… | …101100011111011100 |
3 | 1210012200100110100100 |
4 | 101121101230133130 |
5 | 301222441230332 |
6 | 12325211301100 |
7 | 1230564442551 |
oct | 213121543734 |
9 | 53180313310 |
10 | 18677680092 |
11 | 7a15077555 |
12 | 375314a790 |
13 | 19b8756616 |
14 | c92834a28 |
15 | 744b1c67c |
hex | 45946c7dc |
18677680092 has 36 divisors (see below), whose sum is σ = 47348337400. Its totient is φ = 6208049952.
The previous prime is 18677680019. The next prime is 18677680129. The reversal of 18677680092 is 29008677681.
It is a tau number, because it is divible by the number of its divisors (36).
It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 730738 + ... + 755865.
Almost surely, 218677680092 is an apocalyptic number.
18677680092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
18677680092 is an abundant number, since it is smaller than the sum of its proper divisors (28670657308).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18677680092 is a wasteful number, since it uses less digits than its factorization.
18677680092 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1486962 (or 1486957 counting only the distinct ones).
The product of its (nonzero) digits is 2032128, while the sum is 54.
The spelling of 18677680092 in words is "eighteen billion, six hundred seventy-seven million, six hundred eighty thousand, ninety-two".
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