Base | Representation |
---|---|
bin | 1010011001011… |
… | …00101011010110 |
3 | 20002002222020000 |
4 | 11030230223112 |
5 | 134311333211 |
6 | 12353152130 |
7 | 2106212400 |
oct | 514545326 |
9 | 202088200 |
10 | 87214806 |
11 | 45259858 |
12 | 2525b646 |
13 | 150b82c3 |
14 | b823b70 |
15 | 79cb656 |
hex | 532cad6 |
87214806 has 60 divisors (see below), whose sum is σ = 227352708. Its totient is φ = 24916248.
The previous prime is 87214789. The next prime is 87214843. The reversal of 87214806 is 60841278.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2445 + ... + 13431.
Almost surely, 287214806 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87214806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113676354).
87214806 is an abundant number, since it is smaller than the sum of its proper divisors (140137902).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87214806 is a wasteful number, since it uses less digits than its factorization.
87214806 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11015 (or 10999 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 36.
The square root of 87214806 is about 9338.8867644918. The cubic root of 87214806 is about 443.4691427567.
The spelling of 87214806 in words is "eighty-seven million, two hundred fourteen thousand, eight hundred six".
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