Base | Representation |
---|---|
bin | 10001000111000011… |
… | …111010010100100111 |
3 | 1202102101022012111100 |
4 | 101013003322110213 |
5 | 300111222424324 |
6 | 12235013211143 |
7 | 1220164035144 |
oct | 210703722447 |
9 | 52371265440 |
10 | 18372076839 |
11 | 7878616286 |
12 | 3688930ab3 |
13 | 196a3462ac |
14 | c640033cb |
15 | 727da34c9 |
hex | 4470fa527 |
18372076839 has 24 divisors (see below), whose sum is σ = 27474042960. Its totient is φ = 11816437248.
The previous prime is 18372076769. The next prime is 18372076841. The reversal of 18372076839 is 93867027381.
It is not a de Polignac number, because 18372076839 - 228 = 18103641383 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18372076889) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314199 + ... + 368055.
It is an arithmetic number, because the mean of its divisors is an integer number (1144751790).
Almost surely, 218372076839 is an apocalyptic number.
18372076839 is a deficient number, since it is larger than the sum of its proper divisors (9101966121).
18372076839 is a wasteful number, since it uses less digits than its factorization.
18372076839 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 55199 (or 55196 counting only the distinct ones).
The product of its (nonzero) digits is 3048192, while the sum is 54.
The spelling of 18372076839 in words is "eighteen billion, three hundred seventy-two million, seventy-six thousand, eight hundred thirty-nine".
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