Base | Representation |
---|---|
bin | 100010010010… |
… | …001010001000 |
3 | 121220121012221 |
4 | 202102022020 |
5 | 4300043042 |
6 | 520343424 |
7 | 136250650 |
oct | 42221210 |
9 | 17817187 |
10 | 8987272 |
11 | 50892a8 |
12 | 3014b74 |
13 | 1b28918 |
14 | 129d360 |
15 | bc7d67 |
hex | 892288 |
8987272 has 48 divisors (see below), whose sum is σ = 20018880. Its totient is φ = 3705120.
The previous prime is 8987269. The next prime is 8987287. The reversal of 8987272 is 2727898.
It is an alternating number because its digits alternate between even and odd.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53733 + ... + 53899.
It is an arithmetic number, because the mean of its divisors is an integer number (417060).
Almost surely, 28987272 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 8987272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10009440).
8987272 is an abundant number, since it is smaller than the sum of its proper divisors (11031608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8987272 is a wasteful number, since it uses less digits than its factorization.
8987272 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 242 (or 207 counting only the distinct ones).
The product of its digits is 112896, while the sum is 43.
The square root of 8987272 is about 2997.8779161267. The cubic root of 8987272 is about 207.9102793520.
The spelling of 8987272 in words is "eight million, nine hundred eighty-seven thousand, two hundred seventy-two".
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