Base | Representation |
---|---|
bin | 1010011010110… |
… | …11111000010100 |
3 | 20002110210102211 |
4 | 11031123320110 |
5 | 134334030043 |
6 | 12401243204 |
7 | 2110646152 |
oct | 515337024 |
9 | 202423384 |
10 | 87408148 |
11 | 45381043 |
12 | 25333504 |
13 | 151552c9 |
14 | b8743d2 |
15 | 7a18a9d |
hex | 535be14 |
87408148 has 6 divisors (see below), whose sum is σ = 152964266. Its totient is φ = 43704072.
The previous prime is 87408143. The next prime is 87408149. The reversal of 87408148 is 84180478.
It can be written as a sum of positive squares in only one way, i.e., 82664464 + 4743684 = 9092^2 + 2178^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 87408148.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87408143) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10926015 + ... + 10926022.
Almost surely, 287408148 is an apocalyptic number.
It is an amenable number.
87408148 is a deficient number, since it is larger than the sum of its proper divisors (65556118).
87408148 is a wasteful number, since it uses less digits than its factorization.
87408148 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21852041 (or 21852039 counting only the distinct ones).
The product of its (nonzero) digits is 57344, while the sum is 40.
The square root of 87408148 is about 9349.2324818672. The cubic root of 87408148 is about 443.7966021810.
The spelling of 87408148 in words is "eighty-seven million, four hundred eight thousand, one hundred forty-eight".
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