| Base | Representation |
|---|---|
| bin | 11010111010101001… |
| … | …111100000110010000 |
| 3 | 2202121012000012122100 |
| 4 | 122322221330012100 |
| 5 | 433142222010031 |
| 6 | 21135504240400 |
| 7 | 2042126335554 |
| oct | 327251740620 |
| 9 | 82535005570 |
| 10 | 28901360016 |
| 11 | 11291078601 |
| 12 | 5727010100 |
| 13 | 295789c479 |
| 14 | 1582581864 |
| 15 | b42460de6 |
| hex | 6baa7c190 |
28901360016 has 135 divisors (see below), whose sum is σ = 83760265953. Its totient is φ = 9302618880.
The previous prime is 28901359999. The next prime is 28901360021. The reversal of 28901360016 is 61006310982.
The square root of 28901360016 is 170004.
It is a perfect power (a square), and thus also a powerful number.
28901360016 is a `hidden beast` number, since 28 + 9 + 0 + 13 + 600 + 16 = 666.
It can be written as a sum of positive squares in only one way, i.e., 24995610000 + 3905750016 = 158100^2 + 62496^2 .
It is a super-2 number, since 2×289013600162 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 63241260 + ... + 63241716.
Almost surely, 228901360016 is an apocalyptic number.
28901360016 is the 170004-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28901360016
28901360016 is an abundant number, since it is smaller than the sum of its proper divisors (54858905937).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28901360016 is an equidigital number, since it uses as much as digits as its factorization.
28901360016 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 990 (or 493 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 36.
Multiplying 28901360016 by its sum of digits (36), we get a square (1040448960576 = 10200242).
28901360016 divided by its sum of digits (36) gives a square (802815556 = 283342).
Adding to 28901360016 its reverse (61006310982), we get a palindrome (89907670998).
The spelling of 28901360016 in words is "twenty-eight billion, nine hundred one million, three hundred sixty thousand, sixteen".
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