Base | Representation |
---|---|
bin | 1101001000110001101111… |
… | …10110110010101001101000 |
3 | 10210021202021012211100211200 |
4 | 12210120313312302221220 |
5 | 12241303420102034031 |
6 | 141235212130324200 |
7 | 6041103361054545 |
oct | 644306766625150 |
9 | 123252235740750 |
10 | 28888887143016 |
11 | 922878772a13a |
12 | 32a6a39a29660 |
13 | 1317297243a74 |
14 | 71c330035bcc |
15 | 3516ed8e48e6 |
hex | 1a4637db2a68 |
28888887143016 has 48 divisors (see below), whose sum is σ = 78241129886400. Its totient is φ = 9629580570912.
The previous prime is 28888887142991. The next prime is 28888887143021. The reversal of 28888887143016 is 61034178888882.
28888887143016 is a `hidden beast` number, since 28 + 8 + 8 + 88 + 87 + 1 + 430 + 16 = 666.
It is a Harshad number since it is a multiple of its sum of digits (72).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15182145 + ... + 16978671.
It is an arithmetic number, because the mean of its divisors is an integer number (1630023539300).
Almost surely, 228888887143016 is an apocalyptic number.
It is an amenable number.
28888887143016 is an abundant number, since it is smaller than the sum of its proper divisors (49352242743384).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28888887143016 is a wasteful number, since it uses less digits than its factorization.
28888887143016 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2019878 (or 2019871 counting only the distinct ones).
The product of its (nonzero) digits is 264241152, while the sum is 72.
The spelling of 28888887143016 in words is "twenty-eight trillion, eight hundred eighty-eight billion, eight hundred eighty-seven million, one hundred forty-three thousand, sixteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •