Base | Representation |
---|---|
bin | 11111100111001… |
… | …111101011111101 |
3 | 1100222000011201200 |
4 | 133213033223331 |
5 | 2041234202230 |
6 | 124343530113 |
7 | 16100111640 |
oct | 3747175375 |
9 | 1328004650 |
10 | 530381565 |
11 | 25242857a |
12 | 129759939 |
13 | 85b6195c |
14 | 50623a57 |
15 | 3186a160 |
hex | 1f9cfafd |
530381565 has 48 divisors (see below), whose sum is σ = 1075122048. Its totient is φ = 236815488.
The previous prime is 530381549. The next prime is 530381629. The reversal of 530381565 is 565183035.
It is not a de Polignac number, because 530381565 - 24 = 530381549 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6034 + ... + 33123.
It is an arithmetic number, because the mean of its divisors is an integer number (22398376).
Almost surely, 2530381565 is an apocalyptic number.
It is an amenable number.
530381565 is an abundant number, since it is smaller than the sum of its proper divisors (544740483).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
530381565 is a wasteful number, since it uses less digits than its factorization.
530381565 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39218 (or 39215 counting only the distinct ones).
The product of its (nonzero) digits is 54000, while the sum is 36.
The square root of 530381565 is about 23030.0144376854. The cubic root of 530381565 is about 809.4613931920.
It can be divided in two parts, 5303 and 81565, that added together give a palindrome (86868).
The spelling of 530381565 in words is "five hundred thirty million, three hundred eighty-one thousand, five hundred sixty-five".
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