Base | Representation |
---|---|
bin | 1010011001110… |
… | …01101111010100 |
3 | 20002012200121120 |
4 | 11030321233110 |
5 | 134320041213 |
6 | 12354243540 |
7 | 2106524361 |
oct | 514715724 |
9 | 202180546 |
10 | 87268308 |
11 | 45295a76 |
12 | 252865b0 |
13 | 1510676a |
14 | b839468 |
15 | 79dc423 |
hex | 5339bd4 |
87268308 has 48 divisors (see below), whose sum is σ = 214152960. Its totient is φ = 27619200.
The previous prime is 87268289. The next prime is 87268309. The reversal of 87268308 is 80386278.
It is a self number, because there is not a number n which added to its sum of digits gives 87268308.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87268309) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19173 + ... + 23283.
It is an arithmetic number, because the mean of its divisors is an integer number (4461520).
Almost surely, 287268308 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87268308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107076480).
87268308 is an abundant number, since it is smaller than the sum of its proper divisors (126884652).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87268308 is a wasteful number, since it uses less digits than its factorization.
87268308 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4208 (or 4206 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 42.
The square root of 87268308 is about 9341.7507995022. The cubic root of 87268308 is about 443.5598063995.
The spelling of 87268308 in words is "eighty-seven million, two hundred sixty-eight thousand, three hundred eight".
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