| Base | Representation |
|---|---|
| bin | 111011000110… |
| … | …0111110000000 |
| 3 | 2011022020221210 |
| 4 | 1312030332000 |
| 5 | 30413023422 |
| 6 | 3024050120 |
| 7 | 524243343 |
| oct | 166147600 |
| 9 | 64266853 |
| 10 | 30986112 |
| 11 | 16544363 |
| 12 | a463940 |
| 13 | 655baa1 |
| 14 | 418845a |
| 15 | 2ac110c |
| hex | 1d8cf80 |
30986112 has 128 divisors (see below), whose sum is σ = 90086400. Its totient is φ = 9400320.
The previous prime is 30986107. The next prime is 30986117. The reversal of 30986112 is 21168903.
It is an interprime number because it is at equal distance from previous prime (30986107) and next prime (30986117).
It is a tau number, because it is divible by the number of its divisors (128).
It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 30986112.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30986117) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226108 + ... + 226244.
It is an arithmetic number, because the mean of its divisors is an integer number (703800).
Almost surely, 230986112 is an apocalyptic number.
30986112 is a gapful number since it is divisible by the number (32) 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 30986112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45043200).
30986112 is an abundant number, since it is smaller than the sum of its proper divisors (59100288).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30986112 is a wasteful number, since it uses less digits than its factorization.
30986112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 204 (or 192 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 30.
The square root of 30986112 is about 5566.5170438974. The cubic root of 30986112 is about 314.0911469476.
The spelling of 30986112 in words is "thirty million, nine hundred eighty-six thousand, one hundred twelve".
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