Base | Representation |
---|---|
bin | 1010011100110… |
… | …11101011011100 |
3 | 20002222001220100 |
4 | 11032123223130 |
5 | 134420410333 |
6 | 12411021100 |
7 | 2113115055 |
oct | 516335334 |
9 | 202861810 |
10 | 87669468 |
11 | 4553a407 |
12 | 2543a790 |
13 | 15217233 |
14 | b90172c |
15 | 7a6b213 |
hex | 539badc |
87669468 has 72 divisors (see below), whose sum is σ = 233539488. Its totient is φ = 27675648.
The previous prime is 87669403. The next prime is 87669481. The reversal of 87669468 is 86496678.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93096 + ... + 94032.
It is an arithmetic number, because the mean of its divisors is an integer number (3243604).
Almost surely, 287669468 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 87669468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116769744).
87669468 is an abundant number, since it is smaller than the sum of its proper divisors (145870020).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87669468 is a wasteful number, since it uses less digits than its factorization.
87669468 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1083 (or 1078 counting only the distinct ones).
The product of its digits is 3483648, while the sum is 54.
The square root of 87669468 is about 9363.1975307584. The cubic root of 87669468 is about 444.2384280649.
The spelling of 87669468 in words is "eighty-seven million, six hundred sixty-nine thousand, four hundred sixty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •