Base | Representation |
---|---|
bin | 101000101100100101… |
… | …0111100011010011111 |
3 | 22100120201211122211122 |
4 | 1101121022330122133 |
5 | 2412441204341124 |
6 | 104052054241155 |
7 | 6212511350522 |
oct | 1213112743237 |
9 | 270521748748 |
10 | 87395387039 |
11 | 340784658a4 |
12 | 14b306561bb |
13 | 831a32578c |
14 | 4331018bb9 |
15 | 241788975e |
hex | 14592bc69f |
87395387039 has 8 divisors (see below), whose sum is σ = 87584515440. Its totient is φ = 87206328000.
The previous prime is 87395387011. The next prime is 87395387041. The reversal of 87395387039 is 93078359378.
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 a de Polignac number, because none of the positive numbers 2k-87395387039 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 (87395357039) 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, 3101564 + ... + 3129614.
It is an arithmetic number, because the mean of its divisors is an integer number (10948064430).
Almost surely, 287395387039 is an apocalyptic number.
87395387039 is a deficient number, since it is larger than the sum of its proper divisors (189128401).
87395387039 is a wasteful number, since it uses less digits than its factorization.
87395387039 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34681.
The product of its (nonzero) digits is 34292160, while the sum is 62.
The spelling of 87395387039 in words is "eighty-seven billion, three hundred ninety-five million, three hundred eighty-seven thousand, thirty-nine".
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