Base | Representation |
---|---|
bin | 111011000101… |
… | …1101101010110 |
3 | 2011021222212121 |
4 | 1312023231112 |
5 | 30412342300 |
6 | 3024010154 |
7 | 524222320 |
oct | 166135526 |
9 | 64258777 |
10 | 30980950 |
11 | 165404a0 |
12 | a46095a |
13 | 6559630 |
14 | 4186610 |
15 | 2abe81a |
hex | 1d8bb56 |
30980950 has 96 divisors (see below), whose sum is σ = 77495040. Its totient is φ = 8899200.
The previous prime is 30980947. The next prime is 30980993. The reversal of 30980950 is 5908903.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49741 + ... + 50359.
It is an arithmetic number, because the mean of its divisors is an integer number (807240).
Almost surely, 230980950 is an apocalyptic number.
30980950 is an abundant number, since it is smaller than the sum of its proper divisors (46514090).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30980950 is a wasteful number, since it uses less digits than its factorization.
30980950 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 662 (or 657 counting only the distinct ones).
The product of its (nonzero) digits is 9720, while the sum is 34.
The square root of 30980950 is about 5566.0533594280. The cubic root of 30980950 is about 314.0737044178.
The spelling of 30980950 in words is "thirty million, nine hundred eighty thousand, nine hundred fifty".
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