Base | Representation |
---|---|
bin | 11010110010110000… |
… | …001010111101011110 |
3 | 2202020221112020121100 |
4 | 122302300022331132 |
5 | 432404301313110 |
6 | 21114410413530 |
7 | 2035626363411 |
oct | 326260127536 |
9 | 82227466540 |
10 | 28768776030 |
11 | 11223251265 |
12 | 56aa7312a6 |
13 | 293628a7c7 |
14 | 156cb0bb78 |
15 | b359c1bc0 |
hex | 6b2c0af5e |
28768776030 has 24 divisors (see below), whose sum is σ = 74798817912. Its totient is φ = 7671673584.
The previous prime is 28768776013. The next prime is 28768776037. The reversal of 28768776030 is 3067786782.
28768776030 is a `hidden beast` number, since 28 + 7 + 6 + 8 + 7 + 7 + 603 + 0 = 666.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28768776037) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159826444 + ... + 159826623.
It is an arithmetic number, because the mean of its divisors is an integer number (3116617413).
Almost surely, 228768776030 is an apocalyptic number.
28768776030 is an abundant number, since it is smaller than the sum of its proper divisors (46030041882).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28768776030 is a wasteful number, since it uses less digits than its factorization.
28768776030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 319653080 (or 319653077 counting only the distinct ones).
The product of its (nonzero) digits is 4741632, while the sum is 54.
The spelling of 28768776030 in words is "twenty-eight billion, seven hundred sixty-eight million, seven hundred seventy-six thousand, thirty".
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