Base | Representation |
---|---|
bin | 11100010100010011… |
… | …110001110101101101 |
3 | 2220111000022110011121 |
4 | 130110103301311231 |
5 | 444232302002034 |
6 | 21545035220541 |
7 | 2124322326244 |
oct | 342423616555 |
9 | 86430273147 |
10 | 30405500269 |
11 | 11993126421 |
12 | 5a868a7751 |
13 | 2b373b10a1 |
14 | 168624195b |
15 | bce5271b4 |
hex | 7144f1d6d |
30405500269 has 2 divisors, whose sum is σ = 30405500270. Its totient is φ = 30405500268.
The previous prime is 30405500231. The next prime is 30405500287. The reversal of 30405500269 is 96200550403.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 28481625225 + 1923875044 = 168765^2 + 43862^2 .
It is a cyclic number.
It is not a de Polignac number, because 30405500269 - 215 = 30405467501 is a prime.
It is a super-2 number, since 2×304055002692 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30405507269) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15202750134 + 15202750135.
It is an arithmetic number, because the mean of its divisors is an integer number (15202750135).
Almost surely, 230405500269 is an apocalyptic number.
It is an amenable number.
30405500269 is a deficient number, since it is larger than the sum of its proper divisors (1).
30405500269 is an equidigital number, since it uses as much as digits as its factorization.
30405500269 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 32400, while the sum is 34.
The spelling of 30405500269 in words is "thirty billion, four hundred five million, five hundred thousand, two hundred sixty-nine".
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