Base | Representation |
---|---|
bin | 11100011000001001… |
… | …010000010100001101 |
3 | 2220122111101202221002 |
4 | 130120021100110031 |
5 | 444400240203011 |
6 | 21555254350045 |
7 | 2126033312015 |
oct | 343011202415 |
9 | 86574352832 |
10 | 30469850381 |
11 | 11a16488633 |
12 | 5aa435b325 |
13 | 2b47822089 |
14 | 16909d2c45 |
15 | bd4ed8c3b |
hex | 71825050d |
30469850381 has 2 divisors, whose sum is σ = 30469850382. Its totient is φ = 30469850380.
The previous prime is 30469850357. The next prime is 30469850401. The reversal of 30469850381 is 18305896403.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 18421275625 + 12048574756 = 135725^2 + 109766^2 .
It is a cyclic number.
It is not a de Polignac number, because 30469850381 - 214 = 30469833997 is a prime.
It is a super-2 number, since 2×304698503812 (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 (30469850681) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15234925190 + 15234925191.
It is an arithmetic number, because the mean of its divisors is an integer number (15234925191).
Almost surely, 230469850381 is an apocalyptic number.
It is an amenable number.
30469850381 is a deficient number, since it is larger than the sum of its proper divisors (1).
30469850381 is an equidigital number, since it uses as much as digits as its factorization.
30469850381 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 622080, while the sum is 47.
The spelling of 30469850381 in words is "thirty billion, four hundred sixty-nine million, eight hundred fifty thousand, three hundred eighty-one".
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