Base | Representation |
---|---|
bin | 1101101111000001011111… |
… | …01100110100000010101001 |
3 | 10221221101020201101122011200 |
4 | 12313200233230310002221 |
5 | 12424321231114131441 |
6 | 144123023230314413 |
7 | 6235044515444226 |
oct | 667405754640251 |
9 | 127841221348150 |
10 | 30203010302121 |
11 | 969502aa19848 |
12 | 3479667058a09 |
13 | 13b119330bb87 |
14 | 765b9519694d |
15 | 3759b26797b6 |
hex | 1b782fb340a9 |
30203010302121 has 48 divisors (see below), whose sum is σ = 45349262125440. Its totient is φ = 19353495732480.
The previous prime is 30203010302119. The next prime is 30203010302141. The reversal of 30203010302121 is 12120301030203.
30203010302121 is a `hidden beast` number, since 30 + 20 + 301 + 0 + 302 + 12 + 1 = 666.
It is not a de Polignac number, because 30203010302121 - 21 = 30203010302119 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30203010302094 and 30203010302103.
It is not an unprimeable number, because it can be changed into a prime (30203010302141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 394674300 + ... + 394750818.
It is an arithmetic number, because the mean of its divisors is an integer number (944776294280).
Almost surely, 230203010302121 is an apocalyptic number.
It is an amenable number.
30203010302121 is a deficient number, since it is larger than the sum of its proper divisors (15146251823319).
30203010302121 is a wasteful number, since it uses less digits than its factorization.
30203010302121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 90926 (or 90923 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 30203010302121 its reverse (12120301030203), we get a palindrome (42323311332324).
The spelling of 30203010302121 in words is "thirty trillion, two hundred three billion, ten million, three hundred two thousand, one hundred twenty-one".
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