Base | Representation |
---|---|
bin | 100000000111011… |
… | …000111100010101 |
3 | 1101112212021202000 |
4 | 200013120330111 |
5 | 2100413324320 |
6 | 125244305513 |
7 | 16231536024 |
oct | 4007307425 |
9 | 1345767660 |
10 | 538808085 |
11 | 257163542 |
12 | 130542299 |
13 | 8782226a |
14 | 517b88bb |
15 | 32481c90 |
hex | 201d8f15 |
538808085 has 32 divisors (see below), whose sum is σ = 958848000. Its totient is φ = 287074368.
The previous prime is 538808021. The next prime is 538808107. The reversal of 538808085 is 580808835.
It is not a de Polignac number, because 538808085 - 26 = 538808021 is a prime.
It is a super-2 number, since 2×5388080852 = 580628304922734450, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 538808085.
It is a congruent number.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 236331 + ... + 238599.
It is an arithmetic number, because the mean of its divisors is an integer number (29964000).
Almost surely, 2538808085 is an apocalyptic number.
It is an amenable number.
538808085 is a deficient number, since it is larger than the sum of its proper divisors (420039915).
538808085 is a wasteful number, since it uses less digits than its factorization.
538808085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4042 (or 4036 counting only the distinct ones).
The product of its (nonzero) digits is 307200, while the sum is 45.
The square root of 538808085 is about 23212.2399823886. The cubic root of 538808085 is about 813.7257037916.
The spelling of 538808085 in words is "five hundred thirty-eight million, eight hundred eight thousand, eighty-five".
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