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538705008 = 243234710781
BaseRepresentation
bin100000000110111…
…111110001110000
31101112200001100100
4200012333301300
52100402030013
6125242152400
716230626352
oct4006776160
91345601310
10538705008
112570a3056
121304b2700
13877b737a
145178d0d2
1532461473
hex201bfc70

538705008 has 60 divisors (see below), whose sum is σ = 1512110808. Its totient is φ = 179034240.

The previous prime is 538705007. The next prime is 538705009. The reversal of 538705008 is 800507835.

It is a happy number.

538705008 is a `hidden beast` number, since 538 + 70 + 50 + 0 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (538705007) and next prime (538705009).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538705007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44578 + ... + 55358.

Almost surely, 2538705008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538705008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (756055404).

538705008 is an abundant number, since it is smaller than the sum of its proper divisors (973405800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

538705008 is a wasteful number, since it uses less digits than its factorization.

538705008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11142 (or 11133 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 538705008 is about 23210.0195605260. The cubic root of 538705008 is about 813.6738103896.

The spelling of 538705008 in words is "five hundred thirty-eight million, seven hundred five thousand, eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 347 694 1041 1388 2082 2776 3123 4164 5552 6246 8328 10781 12492 16656 21562 24984 32343 43124 49968 64686 86248 97029 129372 172496 194058 258744 388116 517488 776232 1552464 3741007 7482014 11223021 14964028 22446042 29928056 33669063 44892084 59856112 67338126 89784168 134676252 179568336 269352504 538705008