Base | Representation |
---|---|
bin | 10001011010010000… |
… | …000100010110011000 |
3 | 1210020211010011020001 |
4 | 101122100010112120 |
5 | 301241132440434 |
6 | 12330553542344 |
7 | 1231153432234 |
oct | 213220042630 |
9 | 53224104201 |
10 | 18694030744 |
11 | 7a23324a94 |
12 | 37587149b4 |
13 | 19bbc5c96c |
14 | c94a8d5c4 |
15 | 74629c114 |
hex | 45a404598 |
18694030744 has 16 divisors (see below), whose sum is σ = 35052789600. Its totient is φ = 9346620192.
The previous prime is 18694030741. The next prime is 18694030763. The reversal of 18694030744 is 44703049681.
It is a junction number, because it is equal to n+sod(n) for n = 18694030694 and 18694030703.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18694030741) 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, 284049 + ... + 343615.
It is an arithmetic number, because the mean of its divisors is an integer number (2190799350).
Almost surely, 218694030744 is an apocalyptic number.
It is an amenable number.
18694030744 is a deficient number, since it is larger than the sum of its proper divisors (16358758856).
18694030744 is a wasteful number, since it uses less digits than its factorization.
18694030744 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 98802 (or 98798 counting only the distinct ones).
The product of its (nonzero) digits is 580608, while the sum is 46.
The spelling of 18694030744 in words is "eighteen billion, six hundred ninety-four million, thirty thousand, seven hundred forty-four".
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