Base | Representation |
---|---|
bin | 111001011110… |
… | …0000100000100 |
3 | 2002200210012002 |
4 | 1302330010010 |
5 | 30203133221 |
6 | 2553444432 |
7 | 514050560 |
oct | 162740404 |
9 | 62623162 |
10 | 30130436 |
11 | 1600a496 |
12 | a110718 |
13 | 631c47b |
14 | 40046a0 |
15 | 29a280b |
hex | 1cbc104 |
30130436 has 24 divisors (see below), whose sum is σ = 61164096. Its totient is φ = 12719520.
The previous prime is 30130417. The next prime is 30130439. The reversal of 30130436 is 63403103.
It is not an unprimeable number, because it can be changed into a prime (30130439) 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, 6155 + ... + 9906.
It is an arithmetic number, because the mean of its divisors is an integer number (2548504).
Almost surely, 230130436 is an apocalyptic number.
It is an amenable number.
30130436 is an abundant number, since it is smaller than the sum of its proper divisors (31033660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30130436 is a wasteful number, since it uses less digits than its factorization.
30130436 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16139 (or 16137 counting only the distinct ones).
The product of its (nonzero) digits is 648, while the sum is 20.
The square root of 30130436 is about 5489.1197837176. The cubic root of 30130436 is about 311.1729272669.
Adding to 30130436 its reverse (63403103), we get a palindrome (93533539).
The spelling of 30130436 in words is "thirty million, one hundred thirty thousand, four hundred thirty-six".
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