| Base | Representation |
|---|---|
| bin | 11010001101010110… |
| … | …111100000101100100 |
| 3 | 2200122020000110200100 |
| 4 | 122031112330011210 |
| 5 | 430113144421031 |
| 6 | 20532235544100 |
| 7 | 2014240664061 |
| oct | 321526740544 |
| 9 | 80566013610 |
| 10 | 28141404516 |
| 11 | 10a310a8805 |
| 12 | 55545bb030 |
| 13 | 28662ca464 |
| 14 | 150d67bc68 |
| 15 | aea898de6 |
| hex | 68d5bc164 |
28141404516 has 81 divisors (see below), whose sum is σ = 72311823129. Its totient is φ = 9227812032.
The previous prime is 28141404503. The next prime is 28141404517. The reversal of 28141404516 is 61540414182.
The square root of 28141404516 is 167754.
It is a perfect power (a square), and thus also a powerful number.
28141404516 is a `hidden beast` number, since 28 + 141 + 40 + 451 + 6 = 666.
It can be written as a sum of positive squares in only one way, i.e., 15974432100 + 12166972416 = 126390^2 + 110304^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (28141404517) by changing a digit.
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, 73476061 + ... + 73476443.
Almost surely, 228141404516 is an apocalyptic number.
28141404516 is the 167754-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28141404516
28141404516 is an abundant number, since it is smaller than the sum of its proper divisors (44170418613).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28141404516 is an equidigital number, since it uses as much as digits as its factorization.
28141404516 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 922 (or 461 counting only the distinct ones).
The product of its (nonzero) digits is 30720, while the sum is 36.
Multiplying 28141404516 by its sum of digits (36), we get a square (1013090562576 = 10065242).
28141404516 divided by its sum of digits (36) gives a square (781705681 = 279592).
Adding to 28141404516 its reverse (61540414182), we get a palindrome (89681818698).
The spelling of 28141404516 in words is "twenty-eight billion, one hundred forty-one million, four hundred four thousand, five hundred sixteen".
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