Base | Representation |
---|---|
bin | 11101110111100111111100 |
3 | 112201210202110 |
4 | 131313213330 |
5 | 4001030022 |
6 | 435454020 |
7 | 123361011 |
oct | 35674774 |
9 | 15653673 |
10 | 7830012 |
11 | 4468893 |
12 | 2757310 |
13 | 1811c58 |
14 | 107b708 |
15 | a4a00c |
hex | 7779fc |
7830012 has 24 divisors (see below), whose sum is σ = 18660096. Its totient is φ = 2554288.
The previous prime is 7830007. The next prime is 7830037. The reversal of 7830012 is 2100387.
It is a super-2 number, since 2×78300122 = 122618175840288, which contains 22 as substring.
It is an Ulam number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6378 + ... + 7505.
It is an arithmetic number, because the mean of its divisors is an integer number (777504).
Almost surely, 27830012 is an apocalyptic number.
It is an amenable number.
7830012 is an abundant number, since it is smaller than the sum of its proper divisors (10830084).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7830012 is a wasteful number, since it uses less digits than its factorization.
7830012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13937 (or 13935 counting only the distinct ones).
The product of its (nonzero) digits is 336, while the sum is 21.
The square root of 7830012 is about 2798.2158601509. The cubic root of 7830012 is about 198.5732798830.
Adding to 7830012 its reverse (2100387), we get a palindrome (9930399).
The spelling of 7830012 in words is "seven million, eight hundred thirty thousand, twelve".
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