Base | Representation |
---|---|
bin | 111010101110… |
… | …1000111100000 |
3 | 2010221022002112 |
4 | 1311131013200 |
5 | 30340240422 |
6 | 3015534452 |
7 | 522466043 |
oct | 165350740 |
9 | 63838075 |
10 | 30790112 |
11 | 16420081 |
12 | a38a428 |
13 | 64c0802 |
14 | 4136c5a |
15 | 2a82ee2 |
hex | 1d5d1e0 |
30790112 has 24 divisors (see below), whose sum is σ = 62710200. Its totient is φ = 14863744.
The previous prime is 30790093. The next prime is 30790147. The reversal of 30790112 is 21109703.
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 3 ways as a sum of consecutive naturals, for example, 15662 + ... + 17517.
It is an arithmetic number, because the mean of its divisors is an integer number (2612925).
Almost surely, 230790112 is an apocalyptic number.
30790112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
30790112 is an abundant number, since it is smaller than the sum of its proper divisors (31920088).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30790112 is a wasteful number, since it uses less digits than its factorization.
30790112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33218 (or 33210 counting only the distinct ones).
The product of its (nonzero) digits is 378, while the sum is 23.
The square root of 30790112 is about 5548.8838517309. The cubic root of 30790112 is about 313.4274934554.
Adding to 30790112 its reverse (21109703), we get a palindrome (51899815).
The spelling of 30790112 in words is "thirty million, seven hundred ninety thousand, one hundred twelve".
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