Base | Representation |
---|---|
bin | 1101101110111111110110… |
… | …01110110110011000000011 |
3 | 10221221021222101000021202110 |
4 | 12313133323032312120003 |
5 | 12424312430242012011 |
6 | 144122400023150403 |
7 | 6235013636331351 |
oct | 667377316663003 |
9 | 127837871007673 |
10 | 30202130032131 |
11 | 9694719042992 |
12 | 34794602a5403 |
13 | 13b1082b32a65 |
14 | 765b102d47d1 |
15 | 375960248ba6 |
hex | 1b77fb3b6603 |
30202130032131 has 32 divisors (see below), whose sum is σ = 44015669913600. Its totient is φ = 18338246115840.
The previous prime is 30202130032111. The next prime is 30202130032183. The reversal of 30202130032131 is 13123003120203.
It is not a de Polignac number, because 30202130032131 - 226 = 30202062923267 is a prime.
It is a super-2 number, since 2×302021300321312 (a number of 28 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30202130032098 and 30202130032107.
It is not an unprimeable number, because it can be changed into a prime (30202130032111) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36489705 + ... + 37308213.
It is an arithmetic number, because the mean of its divisors is an integer number (1375489684800).
Almost surely, 230202130032131 is an apocalyptic number.
30202130032131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
30202130032131 is a deficient number, since it is larger than the sum of its proper divisors (13813539881469).
30202130032131 is a wasteful number, since it uses less digits than its factorization.
30202130032131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 841899.
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 30202130032131 its reverse (13123003120203), we get a palindrome (43325133152334).
The spelling of 30202130032131 in words is "thirty trillion, two hundred two billion, one hundred thirty million, thirty-two thousand, one hundred thirty-one".
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