| Base | Representation |
|---|---|
| bin | 10001010001110… |
| … | …110010001111000 |
| 3 | 202012111000022022 |
| 4 | 101101312101320 |
| 5 | 1043203011243 |
| 6 | 44433214012 |
| 7 | 10120015400 |
| oct | 2121662170 |
| 9 | 665430268 |
| 10 | 289891448 |
| 11 | 1396aa810 |
| 12 | 81101308 |
| 13 | 4809ba02 |
| 14 | 2a701800 |
| 15 | 1a6b3b68 |
| hex | 11476478 |
289891448 has 192 divisors, whose sum is σ = 748569600. Its totient is φ = 103783680.
The previous prime is 289891439. The next prime is 289891457. The reversal of 289891448 is 844198982.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (289891439) and next prime (289891457).
It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 289891448.
It is a congruent number.
It is an unprimeable number.
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, 3669473 + ... + 3669551.
It is an arithmetic number, because the mean of its divisors is an integer number (3898800).
Almost surely, 2289891448 is an apocalyptic number.
289891448 is a gapful number since it is divisible by the number (28) 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 289891448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374284800).
289891448 is an abundant number, since it is smaller than the sum of its proper divisors (458678152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
289891448 is a wasteful number, since it uses less digits than its factorization.
289891448 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 170 (or 159 counting only the distinct ones).
The product of its digits is 1327104, while the sum is 53.
The square root of 289891448 is about 17026.1988711515. The cubic root of 289891448 is about 661.8279963131.
The spelling of 289891448 in words is "two hundred eighty-nine million, eight hundred ninety-one thousand, four hundred forty-eight".
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