Base | Representation |
---|---|
bin | 1010011100011… |
… | …11001000100000 |
3 | 20002212110102002 |
4 | 11032033020200 |
5 | 134412234310 |
6 | 12405543132 |
7 | 2112512204 |
oct | 516171040 |
9 | 202773362 |
10 | 87618080 |
11 | 45504840 |
12 | 25414aa8 |
13 | 151c9a24 |
14 | b8cab04 |
15 | 7a5ada5 |
hex | 538f220 |
87618080 has 48 divisors (see below), whose sum is σ = 225820224. Its totient is φ = 31860480.
The previous prime is 87618079. The next prime is 87618131. The reversal of 87618080 is 8081678.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23132 + ... + 26651.
It is an arithmetic number, because the mean of its divisors is an integer number (4704588).
Almost surely, 287618080 is an apocalyptic number.
87618080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
87618080 is an abundant number, since it is smaller than the sum of its proper divisors (138202144).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87618080 is a wasteful number, since it uses less digits than its factorization.
87618080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 49809 (or 49801 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 38.
The square root of 87618080 is about 9360.4529804919. The cubic root of 87618080 is about 444.1516134011.
The spelling of 87618080 in words is "eighty-seven million, six hundred eighteen thousand, eighty".
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