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52175812 = 22131003381
BaseRepresentation
bin1100011100001…
…0001111000100
310122011210202111
43013002033010
5101324111222
65102150404
71202326033
oct307021704
9118153674
1052175812
11274a7507
1215582404
13aa6a880
146d0271a
1548a9777
hex31c23c4

52175812 has 12 divisors (see below), whose sum is σ = 98331436. Its totient is φ = 24081120.

The previous prime is 52175807. The next prime is 52175819. The reversal of 52175812 is 21857125.

It can be written as a sum of positive squares in 2 ways, for example, as 22429696 + 29746116 = 4736^2 + 5454^2 .

It is not an unprimeable number, because it can be changed into a prime (52175819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501639 + ... + 501742.

Almost surely, 252175812 is an apocalyptic number.

52175812 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

52175812 is a deficient number, since it is larger than the sum of its proper divisors (46155624).

52175812 is a wasteful number, since it uses less digits than its factorization.

52175812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003398 (or 1003396 counting only the distinct ones).

The product of its digits is 5600, while the sum is 31.

The square root of 52175812 is about 7223.2826332631. The cubic root of 52175812 is about 373.6712965005.

The spelling of 52175812 in words is "fifty-two million, one hundred seventy-five thousand, eight hundred twelve".

Divisors: 1 2 4 13 26 52 1003381 2006762 4013524 13043953 26087906 52175812