Base | Representation |
---|---|
bin | 1101001011101111000000… |
… | …11110000000111000000000 |
3 | 10210122110112210210210000000 |
4 | 12211313200132000320000 |
5 | 12244440021030314432 |
6 | 141354015120000000 |
7 | 6051331423142346 |
oct | 645674036007000 |
9 | 123573483723000 |
10 | 28990500244992 |
11 | 9267890675670 |
12 | 3302677a60000 |
13 | 1323a3bcc5a00 |
14 | 72320d3db996 |
15 | 35419956a57c |
hex | 1a5de0780e00 |
28990500244992 has 1920 divisors, whose sum is σ = 108170258803200. Its totient is φ = 7671948410880.
The previous prime is 28990500244963. The next prime is 28990500245041. The reversal of 28990500244992 is 29944200509982.
28990500244992 is a `hidden beast` number, since 2 + 8 + 9 + 90 + 50 + 0 + 2 + 4 + 499 + 2 = 666.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 39550477458 + ... + 39550478190.
It is an arithmetic number, because the mean of its divisors is an integer number (56338676460).
Almost surely, 228990500244992 is an apocalyptic number.
28990500244992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28990500244992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54085129401600).
28990500244992 is an abundant number, since it is smaller than the sum of its proper divisors (79179758558208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28990500244992 is an equidigital number, since it uses as much as digits as its factorization.
28990500244992 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 828 (or 781 counting only the distinct ones).
The product of its (nonzero) digits is 33592320, while the sum is 63.
The spelling of 28990500244992 in words is "twenty-eight trillion, nine hundred ninety billion, five hundred million, two hundred forty-four thousand, nine hundred ninety-two".
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