Base | Representation |
---|---|
bin | 11010001100010100… |
… | …110010001010000000 |
3 | 2200121000101101200101 |
4 | 122030110302022000 |
5 | 430044224443321 |
6 | 20530420132144 |
7 | 2013640404556 |
oct | 321424621200 |
9 | 80530341611 |
10 | 28124062336 |
11 | 10a22333327 |
12 | 554a837054 |
13 | 2862837a06 |
14 | 150b245bd6 |
15 | ae90c0791 |
hex | 68c532280 |
28124062336 has 64 divisors (see below), whose sum is σ = 59360285160. Its totient is φ = 13226803200.
The previous prime is 28124062313. The next prime is 28124062349. The reversal of 28124062336 is 63326042182.
It can be written as a sum of positive squares in 4 ways, for example, as 25967388736 + 2156673600 = 161144^2 + 46440^2 .
It is a tau number, because it is divible by the number of its divisors (64).
It is a junction number, because it is equal to n+sod(n) for n = 28124062295 and 28124062304.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5091256 + ... + 5096776.
Almost surely, 228124062336 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28124062336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29680142580).
28124062336 is an abundant number, since it is smaller than the sum of its proper divisors (31236222824).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28124062336 is a wasteful number, since it uses less digits than its factorization.
28124062336 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7893 (or 7881 counting only the distinct ones).
The product of its (nonzero) digits is 82944, while the sum is 37.
The spelling of 28124062336 in words is "twenty-eight billion, one hundred twenty-four million, sixty-two thousand, three hundred thirty-six".
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