Base | Representation |
---|---|
bin | 1101101001101100101000… |
… | …00010111100010110101010 |
3 | 10221021212220010110211022120 |
4 | 12310312110002330112222 |
5 | 12413321440104344320 |
6 | 143503000255532110 |
7 | 6215605560504546 |
oct | 664662402742652 |
9 | 127255803424276 |
10 | 30020010231210 |
11 | 9624462178a1a |
12 | 344a0b482a036 |
13 | 1399b4ac89a4c |
14 | 75ad94b76a26 |
15 | 370d518b6440 |
hex | 1b4d940bc5aa |
30020010231210 has 64 divisors (see below), whose sum is σ = 73069550475264. Its totient is φ = 7891854062400.
The previous prime is 30020010231187. The next prime is 30020010231221. The reversal of 30020010231210 is 1213201002003.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 30020010231210.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22550787 + ... + 23844873.
It is an arithmetic number, because the mean of its divisors is an integer number (1141711726176).
Almost surely, 230020010231210 is an apocalyptic number.
30020010231210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30020010231210 is an abundant number, since it is smaller than the sum of its proper divisors (43049540244054).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30020010231210 is a wasteful number, since it uses less digits than its factorization.
30020010231210 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1305059.
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 30020010231210 its reverse (1213201002003), we get a palindrome (31233211233213).
The spelling of 30020010231210 in words is "thirty trillion, twenty billion, ten million, two hundred thirty-one thousand, two hundred ten".
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