Base | Representation |
---|---|
bin | 101000100100000001… |
… | …1100011011110100000 |
3 | 22022211201111221100000 |
4 | 1101020003203132200 |
5 | 2411344202042331 |
6 | 104003355500000 |
7 | 6202423541160 |
oct | 1211003433640 |
9 | 268751457300 |
10 | 87108237216 |
11 | 33a403689a0 |
12 | 14a70457600 |
13 | 82a29a6940 |
14 | 4304c2c5a0 |
15 | 23ec5680e6 |
hex | 14480e37a0 |
87108237216 has 1728 divisors, whose sum is σ = 375764852736. Its totient is φ = 19147622400.
The previous prime is 87108237211. The next prime is 87108237217. The reversal of 87108237216 is 61273280178.
It is not an unprimeable number, because it can be changed into a prime (87108237211) by changing a digit.
It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2809943121 + ... + 2809943151.
It is an arithmetic number, because the mean of its divisors is an integer number (217456512).
Almost surely, 287108237216 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 87108237216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187882426368).
87108237216 is an abundant number, since it is smaller than the sum of its proper divisors (288656615520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87108237216 is a wasteful number, since it uses less digits than its factorization.
87108237216 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 125 (or 86 counting only the distinct ones).
The product of its (nonzero) digits is 225792, while the sum is 45.
The spelling of 87108237216 in words is "eighty-seven billion, one hundred eight million, two hundred thirty-seven thousand, two hundred sixteen".
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