Base | Representation |
---|---|
bin | 110000110010… |
… | …000100111110 |
3 | 220001200212202 |
4 | 300302010332 |
5 | 11233204110 |
6 | 1134031502 |
7 | 213460613 |
oct | 60620476 |
9 | 26050782 |
10 | 12788030 |
11 | 7244922 |
12 | 4348592 |
13 | 28598a8 |
14 | 19ac50a |
15 | 11c90a5 |
hex | c3213e |
12788030 has 8 divisors (see below), whose sum is σ = 23018472. Its totient is φ = 5115208.
The previous prime is 12788021. The next prime is 12788033. The reversal of 12788030 is 3088721.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×127880302 = 327067422561800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 12787984 and 12788002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12788033) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639392 + ... + 639411.
It is an arithmetic number, because the mean of its divisors is an integer number (2877309).
Almost surely, 212788030 is an apocalyptic number.
12788030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12788030 is a deficient number, since it is larger than the sum of its proper divisors (10230442).
12788030 is a wasteful number, since it uses less digits than its factorization.
12788030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1278810.
The product of its (nonzero) digits is 2688, while the sum is 29.
The square root of 12788030 is about 3576.0355143650. The cubic root of 12788030 is about 233.8484786231.
The spelling of 12788030 in words is "twelve million, seven hundred eighty-eight thousand, thirty".
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