Base | Representation |
---|---|
bin | 11100010100000011… |
… | …011100111010010101 |
3 | 2220110201021000002012 |
4 | 130110003130322111 |
5 | 444230203021440 |
6 | 21544403354005 |
7 | 2124241052114 |
oct | 342403347225 |
9 | 86421230065 |
10 | 30401220245 |
11 | 11990772810 |
12 | 5a85382905 |
13 | 2b36542c26 |
14 | 1685849c7b |
15 | bcde7de65 |
hex | 7140dce95 |
30401220245 has 32 divisors (see below), whose sum is σ = 40114206720. Its totient is φ = 21934815040.
The previous prime is 30401220197. The next prime is 30401220259. The reversal of 30401220245 is 54202210403.
It is a happy number.
It is not a de Polignac number, because 30401220245 - 26 = 30401220181 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 30401220245.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5168216 + ... + 5174094.
It is an arithmetic number, because the mean of its divisors is an integer number (1253568960).
Almost surely, 230401220245 is an apocalyptic number.
It is an amenable number.
30401220245 is a deficient number, since it is larger than the sum of its proper divisors (9712986475).
30401220245 is a wasteful number, since it uses less digits than its factorization.
30401220245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6625.
The product of its (nonzero) digits is 1920, while the sum is 23.
Adding to 30401220245 its reverse (54202210403), we get a palindrome (84603430648).
The spelling of 30401220245 in words is "thirty billion, four hundred one million, two hundred twenty thousand, two hundred forty-five".
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