Base | Representation |
---|---|
bin | 110000011001… |
… | …111010010010 |
3 | 212212200002112 |
4 | 300121322102 |
5 | 11222022132 |
6 | 1131545322 |
7 | 212566202 |
oct | 60317222 |
9 | 25780075 |
10 | 12689042 |
11 | 7187513 |
12 | 42bb242 |
13 | 2823812 |
14 | 1984402 |
15 | 11a9ab2 |
hex | c19e92 |
12689042 has 8 divisors (see below), whose sum is σ = 19476336. Its totient is φ = 6196932.
The previous prime is 12689029. The next prime is 12689051. The reversal of 12689042 is 24098621.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×126890422 = 322023573755528, which contains 22 as substring.
It is an unprimeable number.
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, 73688 + ... + 73859.
It is an arithmetic number, because the mean of its divisors is an integer number (2434542).
Almost surely, 212689042 is an apocalyptic number.
12689042 is a deficient number, since it is larger than the sum of its proper divisors (6787294).
12689042 is a wasteful number, since it uses less digits than its factorization.
12689042 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 147592.
The product of its (nonzero) digits is 6912, while the sum is 32.
The square root of 12689042 is about 3562.1681599835. The cubic root of 12689042 is about 233.2435332446.
The spelling of 12689042 in words is "twelve million, six hundred eighty-nine thousand, forty-two".
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