Base | Representation |
---|---|
bin | 1101101111010010010001… |
… | …01110110110101000100101 |
3 | 10221222020111122002222021222 |
4 | 12313221020232312220211 |
5 | 12424443204132431041 |
6 | 144131113243550125 |
7 | 6235514011360040 |
oct | 667511056665045 |
9 | 127866448088258 |
10 | 30212020202021 |
11 | 9698933861a09 |
12 | 347b36052b345 |
13 | 13b1c9ab472a8 |
14 | 7663aba27c57 |
15 | 375d3d65e74b |
hex | 1b7a48bb6a25 |
30212020202021 has 8 divisors (see below), whose sum is σ = 34626957254400. Its totient is φ = 25821816691248.
The previous prime is 30212020201969. The next prime is 30212020202069. The reversal of 30212020202021 is 12020202021203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30212020202021 - 214 = 30212020185637 is a prime.
It is a super-3 number, since 3×302120202020213 (a number of 41 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30212020232021) 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, 6183382781 + ... + 6183387666.
It is an arithmetic number, because the mean of its divisors is an integer number (4328369656800).
Almost surely, 230212020202021 is an apocalyptic number.
It is an amenable number.
30212020202021 is a deficient number, since it is larger than the sum of its proper divisors (4414937052379).
30212020202021 is a wasteful number, since it uses less digits than its factorization.
30212020202021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12366770803.
The product of its (nonzero) digits is 192, while the sum is 17.
Adding to 30212020202021 its reverse (12020202021203), we get a palindrome (42232222223224).
The spelling of 30212020202021 in words is "thirty trillion, two hundred twelve billion, twenty million, two hundred two thousand, twenty-one".
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