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538808085 = 33517592269
BaseRepresentation
bin100000000111011…
…000111100010101
31101112212021202000
4200013120330111
52100413324320
6125244305513
716231536024
oct4007307425
91345767660
10538808085
11257163542
12130542299
138782226a
14517b88bb
1532481c90
hex201d8f15

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".

Divisors: 1 3 5 9 15 27 45 135 1759 2269 5277 6807 8795 11345 15831 20421 26385 34035 47493 61263 79155 102105 237465 306315 3991171 11973513 19955855 35920539 59867565 107761617 179602695 538808085