Base | Representation |
---|---|
bin | 11100001011000110… |
… | …110101011100110101 |
3 | 2220002020210201121122 |
4 | 130023012311130311 |
5 | 443423241042440 |
6 | 21521442153325 |
7 | 2120436132344 |
oct | 341306653465 |
9 | 86066721548 |
10 | 30251112245 |
11 | 11913a67412 |
12 | 5a43052845 |
13 | 2b11406b23 |
14 | 166d933b5b |
15 | bc0bcc7b5 |
hex | 70b1b5735 |
30251112245 has 4 divisors (see below), whose sum is σ = 36301334700. Its totient is φ = 24200889792.
The previous prime is 30251112217. The next prime is 30251112293. The reversal of 30251112245 is 54221115203.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54221115203 = 47 ⋅1153640749.
It can be written as a sum of positive squares in 2 ways, for example, as 9928328881 + 20322783364 = 99641^2 + 142558^2 .
It is a cyclic number.
It is not a de Polignac number, because 30251112245 - 218 = 30250850101 is a prime.
It is a congruent number.
It is an unprimeable number.
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 in 3 ways as a sum of consecutive naturals, for example, 3025111220 + ... + 3025111229.
It is an arithmetic number, because the mean of its divisors is an integer number (9075333675).
Almost surely, 230251112245 is an apocalyptic number.
It is an amenable number.
30251112245 is a deficient number, since it is larger than the sum of its proper divisors (6050222455).
30251112245 is an equidigital number, since it uses as much as digits as its factorization.
30251112245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6050222454.
The product of its (nonzero) digits is 2400, while the sum is 26.
Adding to 30251112245 its reverse (54221115203), we get a palindrome (84472227448).
The spelling of 30251112245 in words is "thirty billion, two hundred fifty-one million, one hundred twelve thousand, two hundred forty-five".
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