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538710536 = 237134317209
BaseRepresentation
bin100000000111000…
…001001000001000
31101112200022221002
4200013001020020
52100402214121
6125242234132
716230651440
oct4007011010
91345608832
10538710536
112570a7221
121304b5948
13877b9a40
1451791120
1532462e0b
hex201c1208

538710536 has 64 divisors (see below), whose sum is σ = 1272163200. Its totient is φ = 208147968.

The previous prime is 538710511. The next prime is 538710539. The reversal of 538710536 is 635017835.

It is a self number, because there is not a number n which added to its sum of digits gives 538710536.

It is not an unprimeable number, because it can be changed into a prime (538710539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22700 + ... + 39908.

It is an arithmetic number, because the mean of its divisors is an integer number (19877550).

Almost surely, 2538710536 is an apocalyptic number.

538710536 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538710536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636081600).

538710536 is an abundant number, since it is smaller than the sum of its proper divisors (733452664).

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

538710536 is a wasteful number, since it uses less digits than its factorization.

538710536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17278 (or 17274 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 538710536 is about 23210.1386467207. The cubic root of 538710536 is about 813.6765935909.

The spelling of 538710536 in words is "five hundred thirty-eight million, seven hundred ten thousand, five hundred thirty-six".

Divisors: 1 2 4 7 8 13 14 26 28 43 52 56 86 91 104 172 182 301 344 364 559 602 728 1118 1204 2236 2408 3913 4472 7826 15652 17209 31304 34418 68836 120463 137672 223717 240926 447434 481852 739987 894868 963704 1479974 1566019 1789736 2959948 3132038 5179909 5919896 6264076 9619831 10359818 12528152 19239662 20719636 38479324 41439272 67338817 76958648 134677634 269355268 538710536