Base | Representation |
---|---|
bin | 10001001110000001… |
… | …111001010011110010 |
3 | 1202201112021221201012 |
4 | 101032001321103302 |
5 | 300331140121124 |
6 | 12254351110522 |
7 | 1223113545524 |
oct | 211601712362 |
9 | 52645257635 |
10 | 18488988914 |
11 | 7928609030 |
12 | 36bbb12442 |
13 | 198862b836 |
14 | c75757a14 |
15 | 733298e0e |
hex | 44e0794f2 |
18488988914 has 16 divisors (see below), whose sum is σ = 30265292736. Its totient is φ = 8401146000.
The previous prime is 18488988893. The next prime is 18488988929. The reversal of 18488988914 is 41988988481.
It is a super-2 number, since 2×184889889142 (a number of 21 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82037 + ... + 209064.
It is an arithmetic number, because the mean of its divisors is an integer number (1891580796).
Almost surely, 218488988914 is an apocalyptic number.
18488988914 is a deficient number, since it is larger than the sum of its proper divisors (11776303822).
18488988914 is a wasteful number, since it uses less digits than its factorization.
18488988914 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 294001.
The product of its digits is 42467328, while the sum is 68.
The spelling of 18488988914 in words is "eighteen billion, four hundred eighty-eight million, nine hundred eighty-eight thousand, nine hundred fourteen".
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