Base | Representation |
---|---|
bin | 111001011111… |
… | …0101110001001 |
3 | 2002201100010020 |
4 | 1302332232021 |
5 | 30204010241 |
6 | 2554011053 |
7 | 514124400 |
oct | 162765611 |
9 | 62640106 |
10 | 30141321 |
11 | 16017691 |
12 | a116a89 |
13 | 6324402 |
14 | 4008637 |
15 | 29a5b66 |
hex | 1cbeb89 |
30141321 has 12 divisors (see below), whose sum is σ = 46750032. Its totient is φ = 17223528.
The previous prime is 30141317. The next prime is 30141337. The reversal of 30141321 is 12314103.
It is not a de Polignac number, because 30141321 - 22 = 30141317 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 30141321.
It is not an unprimeable number, because it can be changed into a prime (30141721) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102375 + ... + 102668.
It is an arithmetic number, because the mean of its divisors is an integer number (3895836).
Almost surely, 230141321 is an apocalyptic number.
It is an amenable number.
30141321 is a deficient number, since it is larger than the sum of its proper divisors (16608711).
30141321 is a wasteful number, since it uses less digits than its factorization.
30141321 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 205060 (or 205053 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 30141321 is about 5490.1112010596. Note that the first 3 decimals coincide. The cubic root of 30141321 is about 311.2103944702.
Adding to 30141321 its reverse (12314103), we get a palindrome (42455424).
The spelling of 30141321 in words is "thirty million, one hundred forty-one thousand, three hundred twenty-one".
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