Base | Representation |
---|---|
bin | 101000100101101010… |
… | …0110000011101010111 |
3 | 22022222112201011102012 |
4 | 1101023110300131113 |
5 | 2412002222002422 |
6 | 104013035134435 |
7 | 6203660641232 |
oct | 1211324603527 |
9 | 268875634365 |
10 | 87163078487 |
11 | 33a69315a61 |
12 | 14a868a441b |
13 | 82b11687b4 |
14 | 430c226419 |
15 | 240229c4e2 |
hex | 144b530757 |
87163078487 has 8 divisors (see below), whose sum is σ = 92293876656. Its totient is φ = 82032675712.
The previous prime is 87163078427. The next prime is 87163078489. The reversal of 87163078487 is 78487036178.
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 87163078487 - 232 = 82868111191 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87163078489) 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, 438533 + ... + 605505.
It is an arithmetic number, because the mean of its divisors is an integer number (11536734582).
Almost surely, 287163078487 is an apocalyptic number.
87163078487 is a deficient number, since it is larger than the sum of its proper divisors (5130798169).
87163078487 is a wasteful number, since it uses less digits than its factorization.
87163078487 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 197697.
The product of its (nonzero) digits is 12644352, while the sum is 59.
The spelling of 87163078487 in words is "eighty-seven billion, one hundred sixty-three million, seventy-eight thousand, four hundred eighty-seven".
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