Base | Representation |
---|---|
bin | 11011111100111011… |
… | …101010110101000011 |
3 | 2212110200022211012201 |
4 | 123330323222311003 |
5 | 442431401213011 |
6 | 21442105134031 |
7 | 2111520606256 |
oct | 337473526503 |
9 | 85420284181 |
10 | 30013304131 |
11 | 11801800688 |
12 | 599748a317 |
13 | 2aa4072875 |
14 | 164a10d09d |
15 | ba9da5cc1 |
hex | 6fceead43 |
30013304131 has 16 divisors (see below), whose sum is σ = 31719592960. Its totient is φ = 28353900960.
The previous prime is 30013304129. The next prime is 30013304147. The reversal of 30013304131 is 13140331003.
It is a cyclic number.
It is not a de Polignac number, because 30013304131 - 21 = 30013304129 is a prime.
It is a super-2 number, since 2×300133041312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30013304099 and 30013304108.
It is not an unprimeable number, because it can be changed into a prime (30013304161) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2899441 + ... + 2909773.
It is an arithmetic number, because the mean of its divisors is an integer number (1982474560).
Almost surely, 230013304131 is an apocalyptic number.
30013304131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
30013304131 is a deficient number, since it is larger than the sum of its proper divisors (1706288829).
30013304131 is a wasteful number, since it uses less digits than its factorization.
30013304131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12586.
The product of its (nonzero) digits is 324, while the sum is 19.
Adding to 30013304131 its reverse (13140331003), we get a palindrome (43153635134).
The spelling of 30013304131 in words is "thirty billion, thirteen million, three hundred four thousand, one hundred thirty-one".
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