Base | Representation |
---|---|
bin | 110101100010… |
… | …0100101101001 |
3 | 1221211000100000 |
4 | 1223010211221 |
5 | 24141140301 |
6 | 2441333213 |
7 | 460401330 |
oct | 153044551 |
9 | 57730300 |
10 | 28068201 |
11 | 14931067 |
12 | 9497209 |
13 | 5a79905 |
14 | 3a28d17 |
15 | 26e6786 |
hex | 1ac4969 |
28068201 has 48 divisors (see below), whose sum is σ = 49795200. Its totient is φ = 15458688.
The previous prime is 28068199. The next prime is 28068253. The reversal of 28068201 is 10286082.
It is not a de Polignac number, because 28068201 - 21 = 28068199 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28068401) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49045 + ... + 49613.
It is an arithmetic number, because the mean of its divisors is an integer number (1037400).
Almost surely, 228068201 is an apocalyptic number.
28068201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
28068201 is a deficient number, since it is larger than the sum of its proper divisors (21726999).
28068201 is an equidigital number, since it uses as much as digits as its factorization.
28068201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 620 (or 608 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 27.
The square root of 28068201 is about 5297.9430914271. The cubic root of 28068201 is about 303.9052430030.
The spelling of 28068201 in words is "twenty-eight million, sixty-eight thousand, two hundred one".
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