Base | Representation |
---|---|
bin | 10001000111101… |
… | …101101010010000 |
3 | 202000111000221101 |
4 | 101013231222100 |
5 | 1042013002304 |
6 | 44300234144 |
7 | 10055311651 |
oct | 2107555220 |
9 | 660430841 |
10 | 287234704 |
11 | 138155759 |
12 | 8023b954 |
13 | 4767b683 |
14 | 2a20d528 |
15 | 1a33b8a4 |
hex | 111eda90 |
287234704 has 45 divisors (see below), whose sum is σ = 589994883. Its totient is φ = 135448416.
The previous prime is 287234693. The next prime is 287234707. The reversal of 287234704 is 407432782.
The square root of 287234704 is 16948.
It is a perfect power (a square), and thus also a powerful number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (287234707) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1287937 + ... + 1288159.
Almost surely, 2287234704 is an apocalyptic number.
287234704 is the 16948-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 287234704
287234704 is an abundant number, since it is smaller than the sum of its proper divisors (302760179).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
287234704 is an equidigital number, since it uses as much as digits as its factorization.
287234704 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 492 (or 244 counting only the distinct ones).
The product of its (nonzero) digits is 75264, while the sum is 37.
The cubic root of 287234704 is about 659.7999883676.
The spelling of 287234704 in words is "two hundred eighty-seven million, two hundred thirty-four thousand, seven hundred four".
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