Base | Representation |
---|---|
bin | 11100000010011010… |
… | …100110110010110000 |
3 | 2212201002102201000110 |
4 | 130002122212302300 |
5 | 443123424101034 |
6 | 21455153021320 |
7 | 2114015554233 |
oct | 340232466260 |
9 | 85632381013 |
10 | 30105300144 |
11 | 11849725647 |
12 | 5a02254840 |
13 | 2aba14318a |
14 | 165841941a |
15 | bb2ec8de9 |
hex | 7026a6cb0 |
30105300144 has 40 divisors (see below), whose sum is σ = 77781396672. Its totient is φ = 10033890880.
The previous prime is 30105300109. The next prime is 30105300149. The reversal of 30105300144 is 44100350103.
It is a self number, because there is not a number n which added to its sum of digits gives 30105300144.
It is not an unprimeable number, because it can be changed into a prime (30105300149) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422527 + ... + 488609.
Almost surely, 230105300144 is an apocalyptic number.
It is an amenable number.
30105300144 is an abundant number, since it is smaller than the sum of its proper divisors (47676096528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30105300144 is a wasteful number, since it uses less digits than its factorization.
30105300144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 75585 (or 75579 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 21.
Adding to 30105300144 its reverse (44100350103), we get a palindrome (74205650247).
The spelling of 30105300144 in words is "thirty billion, one hundred five million, three hundred thousand, one hundred forty-four".
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