Base | Representation |
---|---|
bin | 1010011100001… |
… | …01111101000111 |
3 | 20002210112211202 |
4 | 11032011331013 |
5 | 134410033422 |
6 | 12405053115 |
7 | 2112264461 |
oct | 516057507 |
9 | 202715752 |
10 | 87580487 |
11 | 45489575 |
12 | 253b719b |
13 | 151b5897 |
14 | b8bb131 |
15 | 7a4eb92 |
hex | 5385f47 |
87580487 has 8 divisors (see below), whose sum is σ = 90870912. Its totient is φ = 84319200.
The previous prime is 87580483. The next prime is 87580489. The reversal of 87580487 is 78408578.
It is a happy number.
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 87580487 - 22 = 87580483 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 (87580483) 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, 1064 + ... + 13277.
It is an arithmetic number, because the mean of its divisors is an integer number (11358864).
Almost surely, 287580487 is an apocalyptic number.
87580487 is a deficient number, since it is larger than the sum of its proper divisors (3290425).
87580487 is a wasteful number, since it uses less digits than its factorization.
87580487 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14569.
The product of its (nonzero) digits is 501760, while the sum is 47.
The square root of 87580487 is about 9358.4446891564. Note that the first 3 decimals coincide. The cubic root of 87580487 is about 444.0880824490.
The spelling of 87580487 in words is "eighty-seven million, five hundred eighty thousand, four hundred eighty-seven".
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