Base | Representation |
---|---|
bin | 11110111110101111001000 |
3 | 120021121022110 |
4 | 132332233020 |
5 | 4034340123 |
6 | 450022320 |
7 | 126013140 |
oct | 36765710 |
9 | 16247273 |
10 | 8121288 |
11 | 464770a |
12 | 28779a0 |
13 | 18b46c6 |
14 | 1115920 |
15 | aa6493 |
hex | 7bebc8 |
8121288 has 32 divisors (see below), whose sum is σ = 23204160. Its totient is φ = 2320320.
The previous prime is 8121283. The next prime is 8121293. The reversal of 8121288 is 8821218.
It is an interprime number because it is at equal distance from previous prime (8121283) and next prime (8121293).
It is a nude number because it is divisible by every one of its digits.
It is not an unprimeable number, because it can be changed into a prime (8121283) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24003 + ... + 24338.
It is an arithmetic number, because the mean of its divisors is an integer number (725130).
Almost surely, 28121288 is an apocalyptic number.
It is an amenable number.
8121288 is an abundant number, since it is smaller than the sum of its proper divisors (15082872).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8121288 is a wasteful number, since it uses less digits than its factorization.
8121288 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48357 (or 48353 counting only the distinct ones).
The product of its digits is 2048, while the sum is 30.
The square root of 8121288 is about 2849.7873604885. The cubic root of 8121288 is about 201.0056680167.
The spelling of 8121288 in words is "eight million, one hundred twenty-one thousand, two hundred eighty-eight".
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