Base | Representation |
---|---|
bin | 1101101111011000010001… |
… | …10001001111100111101101 |
3 | 10221222112211011121000111200 |
4 | 12313230020301033213231 |
5 | 12430021303431213000 |
6 | 144132405055240113 |
7 | 6235656602561622 |
oct | 667541061174755 |
9 | 127875734530450 |
10 | 30215242054125 |
11 | 969a2374800a7 |
12 | 347babb519039 |
13 | 13b239249725b |
14 | 7665d58a0349 |
15 | 375e7b427500 |
hex | 1b7b08c4f9ed |
30215242054125 has 48 divisors (see below), whose sum is σ = 55940118122928. Its totient is φ = 15679260720000.
The previous prime is 30215242054121. The next prime is 30215242054163. The reversal of 30215242054125 is 52145024251203.
30215242054125 is a `hidden beast` number, since 3 + 0 + 2 + 1 + 52 + 42 + 0 + 541 + 25 = 666.
It can be written as a sum of positive squares in 8 ways, for example, as 4359267948996 + 25855974105129 = 2087886^2 + 5084877^2 .
It is not a de Polignac number, because 30215242054125 - 22 = 30215242054121 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 30215242054125.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30215242054121) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 362904226 + ... + 362987475.
It is an arithmetic number, because the mean of its divisors is an integer number (1165419127561).
Almost surely, 230215242054125 is an apocalyptic number.
It is an amenable number.
30215242054125 is a deficient number, since it is larger than the sum of its proper divisors (25724876068803).
30215242054125 is a wasteful number, since it uses less digits than its factorization.
30215242054125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 725891759 (or 725891746 counting only the distinct ones).
The product of its (nonzero) digits is 96000, while the sum is 36.
The spelling of 30215242054125 in words is "thirty trillion, two hundred fifteen billion, two hundred forty-two million, fifty-four thousand, one hundred twenty-five".
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