Base | Representation |
---|---|
bin | 111001011111… |
… | …0011001101100 |
3 | 2002201021022202 |
4 | 1302332121230 |
5 | 30203440022 |
6 | 2554001032 |
7 | 514120520 |
oct | 162763154 |
9 | 62637282 |
10 | 30140012 |
11 | 16016701 |
12 | a116178 |
13 | 6323936 |
14 | 4007d80 |
15 | 29a5592 |
hex | 1cbe66c |
30140012 has 12 divisors (see below), whose sum is σ = 60280080. Its totient is φ = 12917136.
The previous prime is 30139999. The next prime is 30140041. The reversal of 30140012 is 21004103.
It is a happy number.
30140012 is an admirable number.
It is a junction number, because it is equal to n+sod(n) for n = 30139975 and 30140002.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538187 + ... + 538242.
It is an arithmetic number, because the mean of its divisors is an integer number (5023340).
Almost surely, 230140012 is an apocalyptic number.
It is an amenable number.
30140012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30140012 is a wasteful number, since it uses less digits than its factorization.
30140012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1076440 (or 1076438 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 11.
The square root of 30140012 is about 5489.9919854222. The cubic root of 30140012 is about 311.2058892452.
Adding to 30140012 its reverse (21004103), we get a palindrome (51144115).
The spelling of 30140012 in words is "thirty million, one hundred forty thousand, twelve".
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