Base | Representation |
---|---|
bin | 111010110110… |
… | …0111000011000 |
3 | 2011001120122221 |
4 | 1311230320120 |
5 | 30344322210 |
6 | 3021153424 |
7 | 523155223 |
oct | 165547030 |
9 | 64046587 |
10 | 30854680 |
11 | 1646463a |
12 | a3bb874 |
13 | 651400c |
14 | 41525ba |
15 | 2a971da |
hex | 1d6ce18 |
30854680 has 32 divisors (see below), whose sum is σ = 70106400. Its totient is φ = 12220416.
The previous prime is 30854657. The next prime is 30854687. The reversal of 30854680 is 8645803.
It is a super-2 number, since 2×308546802 = 1904022555804800, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30854687) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376 + ... + 7864.
It is an arithmetic number, because the mean of its divisors is an integer number (2190825).
Almost surely, 230854680 is an apocalyptic number.
It is an amenable number.
30854680 is an abundant number, since it is smaller than the sum of its proper divisors (39251720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30854680 is a wasteful number, since it uses less digits than its factorization.
30854680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7603 (or 7599 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 34.
The square root of 30854680 is about 5554.6989117323. The cubic root of 30854680 is about 313.6464301569.
The spelling of 30854680 in words is "thirty million, eight hundred fifty-four thousand, six hundred eighty".
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