Base | Representation |
---|---|
bin | 10001100011100011… |
… | …110110101110001100 |
3 | 1210122201000000122201 |
4 | 101203203312232030 |
5 | 302101123301443 |
6 | 12354253251244 |
7 | 1235061110323 |
oct | 214343665614 |
9 | 53581000581 |
10 | 18850212748 |
11 | 7aa34a9924 |
12 | 37a0a93b24 |
13 | 1a15414653 |
14 | cab7070ba |
15 | 754d4d34d |
hex | 4638f6b8c |
18850212748 has 12 divisors (see below), whose sum is σ = 34928335512. Its totient is φ = 8870688320.
The previous prime is 18850212709. The next prime is 18850212769. The reversal of 18850212748 is 84721205881.
It is a junction number, because it is equal to n+sod(n) for n = 18850212698 and 18850212707.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138604438 + ... + 138604573.
It is an arithmetic number, because the mean of its divisors is an integer number (2910694626).
Almost surely, 218850212748 is an apocalyptic number.
It is an amenable number.
18850212748 is a deficient number, since it is larger than the sum of its proper divisors (16078122764).
18850212748 is a wasteful number, since it uses less digits than its factorization.
18850212748 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 277209032 (or 277209030 counting only the distinct ones).
The product of its (nonzero) digits is 286720, while the sum is 46.
The spelling of 18850212748 in words is "eighteen billion, eight hundred fifty million, two hundred twelve thousand, seven hundred forty-eight".
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