Base | Representation |
---|---|
bin | 110101100001… |
… | …1000110110011 |
3 | 1221210201000012 |
4 | 1223003012303 |
5 | 24140442011 |
6 | 2441245135 |
7 | 460344536 |
oct | 153030663 |
9 | 57721005 |
10 | 28062131 |
11 | 14927549 |
12 | 94937ab |
13 | 5a76c16 |
14 | 3a26a1d |
15 | 26e4a8b |
hex | 1ac31b3 |
28062131 has 2 divisors, whose sum is σ = 28062132. Its totient is φ = 28062130.
The previous prime is 28062119. The next prime is 28062193. The reversal of 28062131 is 13126082.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 28062131 - 214 = 28045747 is a prime.
It is a super-2 number, since 2×280621312 = 1574966392522322, which contains 22 as substring.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 28062097 and 28062106.
It is not a weakly prime, because it can be changed into another prime (28062731) 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 as a sum of consecutive naturals, namely, 14031065 + 14031066.
It is an arithmetic number, because the mean of its divisors is an integer number (14031066).
Almost surely, 228062131 is an apocalyptic number.
28062131 is a deficient number, since it is larger than the sum of its proper divisors (1).
28062131 is an equidigital number, since it uses as much as digits as its factorization.
28062131 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 576, while the sum is 23.
The square root of 28062131 is about 5297.3701966164. The cubic root of 28062131 is about 303.8833340129.
The spelling of 28062131 in words is "twenty-eight million, sixty-two thousand, one hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •