Base | Representation |
---|---|
bin | 110101100010… |
… | …0101100000010 |
3 | 1221211000220011 |
4 | 1223010230002 |
5 | 24141143420 |
6 | 2441335134 |
7 | 460402453 |
oct | 153045402 |
9 | 57730804 |
10 | 28068610 |
11 | 149313a9 |
12 | 94974aa |
13 | 5a79b5b |
14 | 3a2912a |
15 | 26e695a |
hex | 1ac4b02 |
28068610 has 8 divisors (see below), whose sum is σ = 50523516. Its totient is φ = 11227440.
The previous prime is 28068587. The next prime is 28068619. The reversal of 28068610 is 1686082.
It can be written as a sum of positive squares in 2 ways, for example, as 24393721 + 3674889 = 4939^2 + 1917^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (28068619) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403421 + ... + 1403440.
Almost surely, 228068610 is an apocalyptic number.
28068610 is a deficient number, since it is larger than the sum of its proper divisors (22454906).
28068610 is a wasteful number, since it uses less digits than its factorization.
28068610 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2806868.
The product of its (nonzero) digits is 4608, while the sum is 31.
The square root of 28068610 is about 5297.9816911726. The cubic root of 28068610 is about 303.9067191295.
The spelling of 28068610 in words is "twenty-eight million, sixty-eight thousand, six hundred ten".
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