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52660486191 = 331566241787
BaseRepresentation
bin110001000010110011…
…110100000000101111
312000220222222212120110
4301002303310000233
51330322041024231
640105240551103
73542655514155
oct610263640057
9160828885513
1052660486191
1120373520775
12a257a82493
134c73000001
142797bd93d5
151583222046
hexc42cf402f

52660486191 has 8 divisors (see below), whose sum is σ = 72478948864. Its totient is φ = 33974507160.

The previous prime is 52660486181. The next prime is 52660486213. The reversal of 52660486191 is 19168406625.

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

It is not a de Polignac number, because 52660486191 - 211 = 52660484143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52660486191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52660486181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283120801 + ... + 283120986.

It is an arithmetic number, because the mean of its divisors is an integer number (9059868608).

Almost surely, 252660486191 is an apocalyptic number.

52660486191 is a deficient number, since it is larger than the sum of its proper divisors (19818462673).

52660486191 is a wasteful number, since it uses less digits than its factorization.

52660486191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566241821.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 52660486191 in words is "fifty-two billion, six hundred sixty million, four hundred eighty-six thousand, one hundred ninety-one".

Divisors: 1 3 31 93 566241787 1698725361 17553495397 52660486191