Base | Representation |
---|---|
bin | 1010011110011… |
… | …10010001001000 |
3 | 20010100121010212 |
4 | 11033032101020 |
5 | 134444023210 |
6 | 12415300252 |
7 | 2114640143 |
oct | 517162110 |
9 | 203317125 |
10 | 87876680 |
11 | 45671061 |
12 | 2551a688 |
13 | 1528a648 |
14 | b95705a |
15 | 7aac805 |
hex | 53ce448 |
87876680 has 16 divisors (see below), whose sum is σ = 197722620. Its totient is φ = 35150656.
The previous prime is 87876673. The next prime is 87876683. The reversal of 87876680 is 8667878.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 79103236 + 8773444 = 8894^2 + 2962^2 .
It is not an unprimeable number, because it can be changed into a prime (87876683) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098419 + ... + 1098498.
Almost surely, 287876680 is an apocalyptic number.
It is an amenable number.
87876680 is an abundant number, since it is smaller than the sum of its proper divisors (109845940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87876680 is a wasteful number, since it uses less digits than its factorization.
87876680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2196928 (or 2196924 counting only the distinct ones).
The product of its (nonzero) digits is 903168, while the sum is 50.
The square root of 87876680 is about 9374.2562371636. The cubic root of 87876680 is about 444.5881473276.
The spelling of 87876680 in words is "eighty-seven million, eight hundred seventy-six thousand, six hundred eighty".
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