Base | Representation |
---|---|
bin | 11010101101001100… |
… | …111100010001111110 |
3 | 2202000110022012021020 |
4 | 122231030330101332 |
5 | 432211431423112 |
6 | 21101242445010 |
7 | 2033416021035 |
oct | 325514742176 |
9 | 82013265236 |
10 | 28675654782 |
11 | 11185728955 |
12 | 5683503766 |
13 | 291cbb4c88 |
14 | 15605cb71c |
15 | b2c72a48c |
hex | 6ad33c47e |
28675654782 has 32 divisors (see below), whose sum is σ = 59218621440. Its totient is φ = 9247512960.
The previous prime is 28675654781. The next prime is 28675654793. The reversal of 28675654782 is 28745657682.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28675654781) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 674838 + ... + 716070.
It is an arithmetic number, because the mean of its divisors is an integer number (1850581920).
Almost surely, 228675654782 is an apocalyptic number.
28675654782 is an abundant number, since it is smaller than the sum of its proper divisors (30542966658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28675654782 is a wasteful number, since it uses less digits than its factorization.
28675654782 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45008.
The product of its digits is 45158400, while the sum is 60.
The spelling of 28675654782 in words is "twenty-eight billion, six hundred seventy-five million, six hundred fifty-four thousand, seven hundred eighty-two".
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