Base | Representation |
---|---|
bin | 1101101100101000111110… |
… | …10100001100001011110011 |
3 | 10221122112220102002211000221 |
4 | 12312110133110030023303 |
5 | 12422001034021031311 |
6 | 144021242341353511 |
7 | 6226115464235662 |
oct | 666243724141363 |
9 | 127575812084027 |
10 | 30121131033331 |
11 | 9663333237268 |
12 | 3465815a08897 |
13 | 13a6544a516c0 |
14 | 761c289ccdd9 |
15 | 3737be1e5671 |
hex | 1b651f50c2f3 |
30121131033331 has 8 divisors (see below), whose sum is σ = 32441870185200. Its totient is φ = 27800924606112.
The previous prime is 30121131033317. The next prime is 30121131033349. The reversal of 30121131033331 is 13333013112103.
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 30121131033331 - 25 = 30121131033299 is a prime.
It is a super-3 number, since 3×301211310333313 (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30121131033296 and 30121131033305.
It is not an unprimeable number, because it can be changed into a prime (30121131036331) 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, 133063720 + ... + 133289893.
It is an arithmetic number, because the mean of its divisors is an integer number (4055233773150).
Almost surely, 230121131033331 is an apocalyptic number.
30121131033331 is a deficient number, since it is larger than the sum of its proper divisors (2320739151869).
30121131033331 is a wasteful number, since it uses less digits than its factorization.
30121131033331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 266362325.
The product of its (nonzero) digits is 1458, while the sum is 25.
Adding to 30121131033331 its reverse (13333013112103), we get a palindrome (43454144145434).
The spelling of 30121131033331 in words is "thirty trillion, one hundred twenty-one billion, one hundred thirty-one million, thirty-three thousand, three hundred thirty-one".
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