Base | Representation |
---|---|
bin | 11110100100010001011010 |
3 | 120002002121201 |
4 | 132210101122 |
5 | 4022403030 |
6 | 443424414 |
7 | 125052124 |
oct | 36442132 |
9 | 16062551 |
10 | 8012890 |
11 | 4583226 |
12 | 282510a |
13 | 1877272 |
14 | 10c8214 |
15 | a842ca |
hex | 7a445a |
8012890 has 8 divisors (see below), whose sum is σ = 14423220. Its totient is φ = 3205152.
The previous prime is 8012887. The next prime is 8012897. The reversal of 8012890 is 982108.
It can be written as a sum of positive squares in 2 ways, for example, as 7568001 + 444889 = 2751^2 + 667^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8012897) 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, 400635 + ... + 400654.
Almost surely, 28012890 is an apocalyptic number.
8012890 is a deficient number, since it is larger than the sum of its proper divisors (6410330).
8012890 is a wasteful number, since it uses less digits than its factorization.
8012890 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 801296.
The product of its (nonzero) digits is 1152, while the sum is 28.
The square root of 8012890 is about 2830.7048592179. The cubic root of 8012890 is about 200.1073590266.
Adding to 8012890 its reverse (982108), we get a palindrome (8994998).
The spelling of 8012890 in words is "eight million, twelve thousand, eight hundred ninety".
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