Base | Representation |
---|---|
bin | 1001010101100000110110… |
… | …10000111100100100101101 |
3 | 2200200200112221201012221122 |
4 | 10222300123100330210231 |
5 | 10142332230140232000 |
6 | 111355311442310325 |
7 | 4216162323012125 |
oct | 452603320744455 |
9 | 80620487635848 |
10 | 20530401102125 |
11 | 65a5992217522 |
12 | 2376b199583a5 |
13 | b5c015932a25 |
14 | 50d968c99c85 |
15 | 259099923085 |
hex | 12ac1b43c92d |
20530401102125 has 64 divisors (see below), whose sum is σ = 26785660981248. Its totient is φ = 15681032136000.
The previous prime is 20530401102109. The next prime is 20530401102161. The reversal of 20530401102125 is 52120110403502.
It is not a de Polignac number, because 20530401102125 - 24 = 20530401102109 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20530401102094 and 20530401102103.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5592589040 + ... + 5592592710.
It is an arithmetic number, because the mean of its divisors is an integer number (418525952832).
Almost surely, 220530401102125 is an apocalyptic number.
20530401102125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
20530401102125 is a deficient number, since it is larger than the sum of its proper divisors (6255259879123).
20530401102125 is a wasteful number, since it uses less digits than its factorization.
20530401102125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6795 (or 6785 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 26.
Adding to 20530401102125 its reverse (52120110403502), we get a palindrome (72650511505627).
The spelling of 20530401102125 in words is "twenty trillion, five hundred thirty billion, four hundred one million, one hundred two thousand, one hundred twenty-five".
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