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53985047471 = 233615164927
BaseRepresentation
bin110010010001110000…
…100111001110101111
312011100022101120001122
4302101300213032233
51341030133004341
640444514531155
73620541221645
oct622160471657
9164308346048
1053985047471
1120993174213
12a567596abb
135124557594
142881ab1195
15160e66494b
hexc91c273af

53985047471 has 8 divisors (see below), whose sum is σ = 56334649344. Its totient is φ = 51635647800.

The previous prime is 53985047461. The next prime is 53985047477. The reversal of 53985047471 is 17474058935.

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 53985047471 - 210 = 53985046447 is a prime.

It is a super-3 number, since 3×539850474713 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53985047477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 799010 + ... + 863936.

It is an arithmetic number, because the mean of its divisors is an integer number (7041831168).

Almost surely, 253985047471 is an apocalyptic number.

53985047471 is a deficient number, since it is larger than the sum of its proper divisors (2349601873).

53985047471 is a wasteful number, since it uses less digits than its factorization.

53985047471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101101.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 53985047471 in words is "fifty-three billion, nine hundred eighty-five million, forty-seven thousand, four hundred seventy-one".

Divisors: 1 23 36151 64927 831473 1493321 2347175977 53985047471