Base | Representation |
---|---|
bin | 1101101100100111000111… |
… | …01101011110110100111011 |
3 | 10221122110022201102101210210 |
4 | 12312103203231132310323 |
5 | 12421442012020432311 |
6 | 144020555220042203 |
7 | 6226051632323226 |
oct | 666234355366473 |
9 | 127573281371723 |
10 | 30120131030331 |
11 | 966296a811201 |
12 | 3465596b33363 |
13 | 13a6415813054 |
14 | 761b71c805bd |
15 | 3737615133a6 |
hex | 1b64e3b5ed3b |
30120131030331 has 16 divisors (see below), whose sum is σ = 40268380118400. Its totient is φ = 20026014072768.
The previous prime is 30120131030293. The next prime is 30120131030357. The reversal of 30120131030331 is 13303013102103.
It is not a de Polignac number, because 30120131030331 - 26 = 30120131030267 is a prime.
It is a super-2 number, since 2×301201310303312 (a number of 28 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30120131030298 and 30120131030307.
It is not an unprimeable number, because it can be changed into a prime (30120131030531) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420295 + ... + 7772831.
It is an arithmetic number, because the mean of its divisors is an integer number (2516773757400).
Almost surely, 230120131030331 is an apocalyptic number.
30120131030331 is a deficient number, since it is larger than the sum of its proper divisors (10148249088069).
30120131030331 is a wasteful number, since it uses less digits than its factorization.
30120131030331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7356218.
The product of its (nonzero) digits is 486, while the sum is 21.
Adding to 30120131030331 its reverse (13303013102103), we get a palindrome (43423144132434).
The spelling of 30120131030331 in words is "thirty trillion, one hundred twenty billion, one hundred thirty-one million, thirty thousand, three hundred thirty-one".
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