Base | Representation |
---|---|
bin | 11011111110110001… |
… | …001010101011010111 |
3 | 2212112211021200122121 |
4 | 123332301022223113 |
5 | 443012242333211 |
6 | 21445125240411 |
7 | 2112343453054 |
oct | 337661125327 |
9 | 85484250577 |
10 | 30044105431 |
11 | 118181290aa |
12 | 59a5863107 |
13 | 2aaa5684a2 |
14 | 165024a02b |
15 | bac93c271 |
hex | 6fec4aad7 |
30044105431 has 2 divisors, whose sum is σ = 30044105432. Its totient is φ = 30044105430.
The previous prime is 30044105417. The next prime is 30044105449. The reversal of 30044105431 is 13450144003.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30044105431 is a prime.
It is a super-3 number, since 3×300441054313 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a junction number, because it is equal to n+sod(n) for n = 30044105396 and 30044105405.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30044105401) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15022052715 + 15022052716.
It is an arithmetic number, because the mean of its divisors is an integer number (15022052716).
Almost surely, 230044105431 is an apocalyptic number.
30044105431 is a deficient number, since it is larger than the sum of its proper divisors (1).
30044105431 is an equidigital number, since it uses as much as digits as its factorization.
30044105431 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2880, while the sum is 25.
Adding to 30044105431 its reverse (13450144003), we get a palindrome (43494249434).
The spelling of 30044105431 in words is "thirty billion, forty-four million, one hundred five thousand, four hundred thirty-one".
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