Base | Representation |
---|---|
bin | 11010110000001001… |
… | …010001100011000000 |
3 | 2202010220012110102100 |
4 | 122300021101203000 |
5 | 432312101244320 |
6 | 21110204550400 |
7 | 2034555453312 |
oct | 326011214300 |
9 | 82126173370 |
10 | 28725024960 |
11 | 11200589455 |
12 | 5697b52400 |
13 | 292a1ac7b8 |
14 | 1566d9d7b2 |
15 | b31c2d790 |
hex | 6b02518c0 |
28725024960 has 84 divisors (see below), whose sum is σ = 98802127008. Its totient is φ = 7660005888.
The previous prime is 28725024953. The next prime is 28725024997. The reversal of 28725024960 is 6942052782.
28725024960 is a `hidden beast` number, since 2 + 87 + 2 + 502 + 4 + 9 + 60 = 666.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4984104 + ... + 4989863.
Almost surely, 228725024960 is an apocalyptic number.
28725024960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28725024960 is an abundant number, since it is smaller than the sum of its proper divisors (70077102048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28725024960 is a wasteful number, since it uses less digits than its factorization.
28725024960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9973990 (or 9973977 counting only the distinct ones).
The product of its (nonzero) digits is 483840, while the sum is 45.
The spelling of 28725024960 in words is "twenty-eight billion, seven hundred twenty-five million, twenty-four thousand, nine hundred sixty".
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