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52753878061 = 971384139293
BaseRepresentation
bin110001001000011000…
…000100110000101101
312001011111201200010121
4301020120010300231
51331014443044221
640122414404541
73545201364523
oct611030046055
9161144650117
1052753878061
1120411209435
12a283200751
134c8946ba81
1427a638a313
15158b51da41
hexc48604c2d

52753878061 has 8 divisors (see below), whose sum is σ = 53302939704. Its totient is φ = 52204922880.

The previous prime is 52753878013. The next prime is 52753878071. The reversal of 52753878061 is 16087835725.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14643420100 + 38110457961 = 121010^2 + 195219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52753878061 - 215 = 52753845293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52753878071) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1322931 + ... + 1362223.

It is an arithmetic number, because the mean of its divisors is an integer number (6662867463).

Almost surely, 252753878061 is an apocalyptic number.

It is an amenable number.

52753878061 is a deficient number, since it is larger than the sum of its proper divisors (549061643).

52753878061 is a wasteful number, since it uses less digits than its factorization.

52753878061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53231.

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 52753878061 in words is "fifty-two billion, seven hundred fifty-three million, eight hundred seventy-eight thousand, sixty-one".

Divisors: 1 97 13841 39293 1342577 3811421 543854413 52753878061