Base | Representation |
---|---|
bin | 1010011101111… |
… | …01100001110100 |
3 | 20010020010002110 |
4 | 11032331201310 |
5 | 134434324431 |
6 | 12414011020 |
7 | 2114233224 |
oct | 516754164 |
9 | 203203073 |
10 | 87808116 |
11 | 456245a0 |
12 | 254a6a70 |
13 | 15265386 |
14 | b93a084 |
15 | 7a97346 |
hex | 53bd874 |
87808116 has 24 divisors (see below), whose sum is σ = 223511904. Its totient is φ = 26608480.
The previous prime is 87808103. The next prime is 87808117. The reversal of 87808116 is 61180878.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87808117) 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, 332475 + ... + 332738.
It is an arithmetic number, because the mean of its divisors is an integer number (9312996).
Almost surely, 287808116 is an apocalyptic number.
It is an amenable number.
87808116 is an abundant number, since it is smaller than the sum of its proper divisors (135703788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87808116 is a wasteful number, since it uses less digits than its factorization.
87808116 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 665231 (or 665229 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 39.
The square root of 87808116 is about 9370.5984867563. The cubic root of 87808116 is about 444.4724902765.
The spelling of 87808116 in words is "eighty-seven million, eight hundred eight thousand, one hundred sixteen".
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