Base | Representation |
---|---|
bin | 101000100001100111… |
… | …1011110111101110000 |
3 | 22022122002112222001011 |
4 | 1101003033132331300 |
5 | 2411213013302014 |
6 | 103551352520304 |
7 | 6200423234530 |
oct | 1210317367560 |
9 | 268562488034 |
10 | 87027478384 |
11 | 339a9819660 |
12 | 14a493b0094 |
13 | 828c03c052 |
14 | 42d82094c0 |
15 | 23e54147c4 |
hex | 14433def70 |
87027478384 has 320 divisors, whose sum is σ = 226533500928. Its totient is φ = 31386009600.
The previous prime is 87027478379. The next prime is 87027478387. The reversal of 87027478384 is 48387472078.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87027478387) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 200987032 + ... + 200987464.
Almost surely, 287027478384 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87027478384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113266750464).
87027478384 is an abundant number, since it is smaller than the sum of its proper divisors (139506022544).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87027478384 is a wasteful number, since it uses less digits than its factorization.
87027478384 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 696 (or 690 counting only the distinct ones).
The product of its (nonzero) digits is 16859136, while the sum is 58.
The spelling of 87027478384 in words is "eighty-seven billion, twenty-seven million, four hundred seventy-eight thousand, three hundred eighty-four".
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