Base | Representation |
---|---|
bin | 1010011011000… |
… | …01011011010110 |
3 | 20002111221121101 |
4 | 11031201123112 |
5 | 134340241440 |
6 | 12401540314 |
7 | 2111102332 |
oct | 515413326 |
9 | 202457541 |
10 | 87430870 |
11 | 4539711a |
12 | 2534469a |
13 | 15162757 |
14 | b87c7c2 |
15 | 7a2069a |
hex | 53616d6 |
87430870 has 8 divisors (see below), whose sum is σ = 157375584. Its totient is φ = 34972344.
The previous prime is 87430793. The next prime is 87430879. The reversal of 87430870 is 7803478.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87430879) 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, 4371534 + ... + 4371553.
It is an arithmetic number, because the mean of its divisors is an integer number (19671948).
Almost surely, 287430870 is an apocalyptic number.
87430870 is a deficient number, since it is larger than the sum of its proper divisors (69944714).
87430870 is a wasteful number, since it uses less digits than its factorization.
87430870 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8743094.
The product of its (nonzero) digits is 37632, while the sum is 37.
The square root of 87430870 is about 9350.4475828700. The cubic root of 87430870 is about 443.8350542513.
The spelling of 87430870 in words is "eighty-seven million, four hundred thirty thousand, eight hundred seventy".
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