| Base | Representation |
|---|---|
| bin | 110111010011… |
| … | …0110011001000 |
| 3 | 2000120002100000 |
| 4 | 1232212303020 |
| 5 | 24410313020 |
| 6 | 2513243000 |
| 7 | 501310554 |
| oct | 156466310 |
| 9 | 60502300 |
| 10 | 28994760 |
| 11 | 15404213 |
| 12 | 9863460 |
| 13 | 6012582 |
| 14 | 3bca864 |
| 15 | 282b090 |
| hex | 1ba6cc8 |
28994760 has 192 divisors, whose sum is σ = 103521600. Its totient is φ = 7278336.
The previous prime is 28994759. The next prime is 28994761. The reversal of 28994760 is 6749982.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (28994759) and next prime (28994761).
It is a super-2 number, since 2×289947602 = 1681392214915200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28994761) 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 47 ways as a sum of consecutive naturals, for example, 184602 + ... + 184758.
It is an arithmetic number, because the mean of its divisors is an integer number (539175).
Almost surely, 228994760 is an apocalyptic number.
28994760 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 28994760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51760800).
28994760 is an abundant number, since it is smaller than the sum of its proper divisors (74526840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28994760 is a wasteful number, since it uses less digits than its factorization.
28994760 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 202 (or 186 counting only the distinct ones).
The product of its (nonzero) digits is 217728, while the sum is 45.
The square root of 28994760 is about 5384.6782633691. The cubic root of 28994760 is about 307.2131769250.
The spelling of 28994760 in words is "twenty-eight million, nine hundred ninety-four thousand, seven hundred sixty".
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