Base | Representation |
---|---|
bin | 1101001000111101011001… |
… | …10010000001010110000000 |
3 | 10210022100102020211011112200 |
4 | 12210132230302001112000 |
5 | 12241404223302402143 |
6 | 141242125032153200 |
7 | 6041414412525630 |
oct | 644365462012600 |
9 | 123270366734480 |
10 | 28895143794048 |
11 | 92303a8416714 |
12 | 32a80a5238800 |
13 | 1317a5354063c |
14 | 71c764d726c0 |
15 | 351967d271d3 |
hex | 1a47acc81580 |
28895143794048 has 288 divisors, whose sum is σ = 100291858252560. Its totient is φ = 7821241141248.
The previous prime is 28895143794037. The next prime is 28895143794107. The reversal of 28895143794048 is 84049734159882.
It is a happy number.
28895143794048 is a `hidden beast` number, since 2 + 8 + 8 + 9 + 5 + 143 + 79 + 404 + 8 = 666.
It is a tau number, because it is divible by the number of its divisors (288).
It is a Harshad number since it is a multiple of its sum of digits (72).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2051815 + ... + 7874022.
Almost surely, 228895143794048 is an apocalyptic number.
28895143794048 is a gapful number since it is divisible by the number (28) 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 28895143794048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50145929126280).
28895143794048 is an abundant number, since it is smaller than the sum of its proper divisors (71396714458512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28895143794048 is a wasteful number, since it uses less digits than its factorization.
28895143794048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9925902 (or 9925868 counting only the distinct ones).
The product of its (nonzero) digits is 557383680, while the sum is 72.
The spelling of 28895143794048 in words is "twenty-eight trillion, eight hundred ninety-five billion, one hundred forty-three million, seven hundred ninety-four thousand, forty-eight".
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