Base | Representation |
---|---|
bin | 1010011101011… |
… | …10111101011001 |
3 | 20010010002020021 |
4 | 11032232331121 |
5 | 134430422231 |
6 | 12412430441 |
7 | 2113564234 |
oct | 516567531 |
9 | 203102207 |
10 | 87748441 |
11 | 45593780 |
12 | 25478421 |
13 | 15244171 |
14 | b92241b |
15 | 7a84811 |
hex | 53aef59 |
87748441 has 16 divisors (see below), whose sum is σ = 106695360. Its totient is φ = 71124480.
The previous prime is 87748433. The next prime is 87748457. The reversal of 87748441 is 14484778.
It is a cyclic number.
It is not a de Polignac number, because 87748441 - 23 = 87748433 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87748471) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8796 + ... + 15901.
It is an arithmetic number, because the mean of its divisors is an integer number (6668460).
Almost surely, 287748441 is an apocalyptic number.
It is an amenable number.
87748441 is a deficient number, since it is larger than the sum of its proper divisors (18946919).
87748441 is a wasteful number, since it uses less digits than its factorization.
87748441 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24744.
The product of its digits is 200704, while the sum is 43.
The square root of 87748441 is about 9367.4137839641. The cubic root of 87748441 is about 444.3717786037.
The spelling of 87748441 in words is "eighty-seven million, seven hundred forty-eight thousand, four hundred forty-one".
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