Base | Representation |
---|---|
bin | 110111010010… |
… | …1001100101010 |
3 | 2000112202100010 |
4 | 1232211030222 |
5 | 24410110302 |
6 | 2513152350 |
7 | 501252465 |
oct | 156451452 |
9 | 60482303 |
10 | 28988202 |
11 | 153aa2a1 |
12 | 985b6b6 |
13 | 600c5a9 |
14 | 3bc82dc |
15 | 282916c |
hex | 1ba532a |
28988202 has 8 divisors (see below), whose sum is σ = 57976416. Its totient is φ = 9662732.
The previous prime is 28988171. The next prime is 28988207. The reversal of 28988202 is 20288982.
It is a sphenic number, since it is the product of 3 distinct primes.
28988202 is an admirable number.
It is not an unprimeable number, because it can be changed into a prime (28988207) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2415678 + ... + 2415689.
It is an arithmetic number, because the mean of its divisors is an integer number (7247052).
Almost surely, 228988202 is an apocalyptic number.
28988202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28988202 is a wasteful number, since it uses less digits than its factorization.
28988202 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4831372.
The product of its (nonzero) digits is 36864, while the sum is 39.
The square root of 28988202 is about 5384.0692789005. The cubic root of 28988202 is about 307.1900134761.
The spelling of 28988202 in words is "twenty-eight million, nine hundred eighty-eight thousand, two hundred two".
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