Base | Representation |
---|---|
bin | 111010111100… |
… | …1101101000000 |
3 | 2011011020201010 |
4 | 1311321231000 |
5 | 30403012300 |
6 | 3022240520 |
7 | 523464312 |
oct | 165715500 |
9 | 64136633 |
10 | 30907200 |
11 | 164a0045 |
12 | a426140 |
13 | 6531bac |
14 | 41677b2 |
15 | 2aa7a50 |
hex | 1d79b40 |
30907200 has 168 divisors, whose sum is σ = 104314752. Its totient is φ = 8007680.
The previous prime is 30907199. The next prime is 30907229. The reversal of 30907200 is 270903.
It is a congruent number.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 225532 + ... + 225668.
Almost surely, 230907200 is an apocalyptic number.
30907200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30907200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52157376).
30907200 is an abundant number, since it is smaller than the sum of its proper divisors (73407552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30907200 is a wasteful number, since it uses less digits than its factorization.
30907200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 209 (or 194 counting only the distinct ones).
The product of its (nonzero) digits is 378, while the sum is 21.
The square root of 30907200 is about 5559.4244306403. The cubic root of 30907200 is about 313.8242894300.
The spelling of 30907200 in words is "thirty million, nine hundred seven thousand, two hundred".
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