Base | Representation |
---|---|
bin | 11010001001100000… |
… | …101101101101000010 |
3 | 2200110201120011202020 |
4 | 122021200231231002 |
5 | 430000133430203 |
6 | 20522012302310 |
7 | 2012525233245 |
oct | 321140555502 |
9 | 80421504666 |
10 | 28076858178 |
11 | 109a8722126 |
12 | 5536a71996 |
13 | 2855b1b065 |
14 | 1504c7925c |
15 | ae4d99153 |
hex | 68982db42 |
28076858178 has 8 divisors (see below), whose sum is σ = 56153716368. Its totient is φ = 9358952724.
The previous prime is 28076858177. The next prime is 28076858189. The reversal of 28076858178 is 87185867082.
It is a sphenic number, since it is the product of 3 distinct primes.
28076858178 is an admirable number.
It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (28076858177) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2339738176 + ... + 2339738187.
It is an arithmetic number, because the mean of its divisors is an integer number (7019214546).
Almost surely, 228076858178 is an apocalyptic number.
28076858178 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28076858178 is a wasteful number, since it uses less digits than its factorization.
28076858178 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4679476368.
The product of its (nonzero) digits is 12042240, while the sum is 60.
The spelling of 28076858178 in words is "twenty-eight billion, seventy-six million, eight hundred fifty-eight thousand, one hundred seventy-eight".
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