Base | Representation |
---|---|
bin | 11100011001001011… |
… | …101001100011000100 |
3 | 2220200201011000220100 |
4 | 130121023221203010 |
5 | 444414214131421 |
6 | 22001115404100 |
7 | 2126334252024 |
oct | 343113514304 |
9 | 86621130810 |
10 | 30487255236 |
11 | 11a25296109 |
12 | 5aaa153630 |
13 | 2b4b3071c9 |
14 | 1693043a84 |
15 | bd67c5c26 |
hex | 7192e98c4 |
30487255236 has 27 divisors (see below), whose sum is σ = 77067654573. Its totient is φ = 10162069200.
The previous prime is 30487255219. The next prime is 30487255241. The reversal of 30487255236 is 63255278403.
The square root of 30487255236 is 174606.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 253000836 + 30234254400 = 15906^2 + 173880^2 .
It is a junction number, because it is equal to n+sod(n) for n = 30487255191 and 30487255200.
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1033086 + ... + 1062186.
Almost surely, 230487255236 is an apocalyptic number.
30487255236 is a gapful number since it is divisible by the number (36) formed by its first and last digit.
30487255236 is the 174606-th square number.
It is an amenable number.
30487255236 is an abundant number, since it is smaller than the sum of its proper divisors (46580399337).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30487255236 is an frugal number, since it uses more digits than its factorization.
30487255236 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 58212 (or 29106 counting only the distinct ones).
The product of its (nonzero) digits is 1209600, while the sum is 45.
The spelling of 30487255236 in words is "thirty billion, four hundred eighty-seven million, two hundred fifty-five thousand, two hundred thirty-six".
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