Base | Representation |
---|---|
bin | 1010011110011… |
… | …10000010000101 |
3 | 20010100112211012 |
4 | 11033032002011 |
5 | 134444010332 |
6 | 12415252005 |
7 | 2114634266 |
oct | 517160205 |
9 | 203315735 |
10 | 87875717 |
11 | 45670366 |
12 | 2551a005 |
13 | 1528a087 |
14 | b95696d |
15 | 7aac3b2 |
hex | 53ce085 |
87875717 has 8 divisors (see below), whose sum is σ = 88957440. Its totient is φ = 86800480.
The previous prime is 87875707. The next prime is 87875719. The reversal of 87875717 is 71757878.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 87875717 - 24 = 87875701 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87875719) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29084 + ... + 31962.
It is an arithmetic number, because the mean of its divisors is an integer number (11119680).
Almost surely, 287875717 is an apocalyptic number.
It is an amenable number.
87875717 is a deficient number, since it is larger than the sum of its proper divisors (1081723).
87875717 is a wasteful number, since it uses less digits than its factorization.
87875717 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3243.
The product of its digits is 768320, while the sum is 50.
The square root of 87875717 is about 9374.2048729479. The cubic root of 87875717 is about 444.5865233095.
The spelling of 87875717 in words is "eighty-seven million, eight hundred seventy-five thousand, seven hundred seventeen".
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