Base | Representation |
---|---|
bin | 11010001010111001… |
… | …010101001110101110 |
3 | 2200112100021102002210 |
4 | 122022321111032232 |
5 | 430022110320000 |
6 | 20524202231250 |
7 | 2013226545666 |
oct | 321271251656 |
9 | 80470242083 |
10 | 28100088750 |
11 | 10a0a849648 |
12 | 55427b5526 |
13 | 285a892a66 |
14 | 1507da51a6 |
15 | ae6e37350 |
hex | 68ae553ae |
28100088750 has 40 divisors (see below), whose sum is σ = 70227751176. Its totient is φ = 7493356000.
The previous prime is 28100088743. The next prime is 28100088781. The reversal of 28100088750 is 5788000182.
It is a super-2 number, since 2×281000887502 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 28100088699 and 28100088708.
It is a congruent number.
It is an unprimeable number.
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 19 ways as a sum of consecutive naturals, for example, 3742929 + ... + 3750428.
Almost surely, 228100088750 is an apocalyptic number.
28100088750 is an abundant number, since it is smaller than the sum of its proper divisors (42127662426).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28100088750 is an equidigital number, since it uses as much as digits as its factorization.
28100088750 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7493382 (or 7493367 counting only the distinct ones).
The product of its (nonzero) digits is 35840, while the sum is 39.
The spelling of 28100088750 in words is "twenty-eight billion, one hundred million, eighty-eight thousand, seven hundred fifty".
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