Base | Representation |
---|---|
bin | 11010100111111011… |
… | …001001011111100110 |
3 | 2201210021200100202011 |
4 | 122213323021133212 |
5 | 432021244313410 |
6 | 21044400504434 |
7 | 2031262243126 |
oct | 324773113746 |
9 | 81707610664 |
10 | 28587104230 |
11 | 1113a747583 |
12 | 565991b11a |
13 | 290774c9b9 |
14 | 155293ac86 |
15 | b24a8818a |
hex | 6a7ec97e6 |
28587104230 has 16 divisors (see below), whose sum is σ = 51459305040. Its totient is φ = 11434282272.
The previous prime is 28587104209. The next prime is 28587104237. The reversal of 28587104230 is 3240178582.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28587104237) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191092 + ... + 306088.
It is an arithmetic number, because the mean of its divisors is an integer number (3216206565).
Almost surely, 228587104230 is an apocalyptic number.
28587104230 is a deficient number, since it is larger than the sum of its proper divisors (22872200810).
28587104230 is a wasteful number, since it uses less digits than its factorization.
28587104230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 139863.
The product of its (nonzero) digits is 107520, while the sum is 40.
The spelling of 28587104230 in words is "twenty-eight billion, five hundred eighty-seven million, one hundred four thousand, two hundred thirty".
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