| Base | Representation |
|---|---|
| bin | 11010010011010111… |
| … | …001001000100000000 |
| 3 | 2200220020112101200000 |
| 4 | 122103113021010000 |
| 5 | 430314440332320 |
| 6 | 20550234400000 |
| 7 | 2016603032034 |
| oct | 322327110400 |
| 9 | 80806471600 |
| 10 | 28242120960 |
| 11 | 10a82a39539 |
| 12 | 5582290000 |
| 13 | 28811320a1 |
| 14 | 151cbb81c4 |
| 15 | b04640c90 |
| hex | 6935c9100 |
28242120960 has 864 divisors, whose sum is σ = 109281070080. Its totient is φ = 6967296000.
The previous prime is 28242120953. The next prime is 28242120967. The reversal of 28242120960 is 6902124282.
28242120960 is a `hidden beast` number, since 28 + 2 + 421 + 209 + 6 + 0 = 666.
It is an interprime number because it is at equal distance from previous prime (28242120953) and next prime (28242120967).
It is a tau number, because it is divible by the number of its divisors (864).
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 (28242120967) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 279624910 + ... + 279625010.
It is an arithmetic number, because the mean of its divisors is an integer number (126482720).
Almost surely, 228242120960 is an apocalyptic number.
28242120960 is a gapful number since it is divisible by the number (20) 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 28242120960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54640535040).
28242120960 is an abundant number, since it is smaller than the sum of its proper divisors (81038949120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28242120960 is a wasteful number, since it uses less digits than its factorization.
28242120960 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 197 (or 171 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 36.
The spelling of 28242120960 in words is "twenty-eight billion, two hundred forty-two million, one hundred twenty thousand, nine hundred sixty".
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