Base | Representation |
---|---|
bin | 11100011001001110… |
… | …111011101010001110 |
3 | 2220200202202202110002 |
4 | 130121032323222032 |
5 | 444414424201404 |
6 | 22001150044302 |
7 | 2126344465100 |
oct | 343116735216 |
9 | 86622682402 |
10 | 30488115854 |
11 | 11a25823769 |
12 | 5aaa4a9692 |
13 | 2b4b548b51 |
14 | 16931c9570 |
15 | bd68e5c1e |
hex | 7193bba8e |
30488115854 has 12 divisors (see below), whose sum is σ = 53198651304. Its totient is φ = 13066335324.
The previous prime is 30488115841. The next prime is 30488115871. The reversal of 30488115854 is 45851188403.
It is a super-2 number, since 2×304881158542 (a number of 22 digits) contains 22 as substring.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 30488115799 and 30488115808.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155551514 + ... + 155551709.
It is an arithmetic number, because the mean of its divisors is an integer number (4433220942).
Almost surely, 230488115854 is an apocalyptic number.
30488115854 is a deficient number, since it is larger than the sum of its proper divisors (22710535450).
30488115854 is a wasteful number, since it uses less digits than its factorization.
30488115854 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 311103239 (or 311103232 counting only the distinct ones).
The product of its (nonzero) digits is 614400, while the sum is 47.
The spelling of 30488115854 in words is "thirty billion, four hundred eighty-eight million, one hundred fifteen thousand, eight hundred fifty-four".
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