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52085087471 = 291796037499
BaseRepresentation
bin110000100000100000…
…110101110011101111
311222102220021120220202
4300200200311303233
51323132240244341
635532204104115
73522500636654
oct604040656357
9158386246822
1052085087471
11200a874613a
12a11723503b
134bb0a38cb1
142741617c2b
15154c96379b
hexc20835cef

52085087471 has 4 divisors (see below), whose sum is σ = 53881125000. Its totient is φ = 50289049944.

The previous prime is 52085087419. The next prime is 52085087489. The reversal of 52085087471 is 17478058025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52085087471 - 210 = 52085086447 is a prime.

It is a super-3 number, since 3×520850874713 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52085087491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898018721 + ... + 898018778.

It is an arithmetic number, because the mean of its divisors is an integer number (13470281250).

Almost surely, 252085087471 is an apocalyptic number.

52085087471 is a deficient number, since it is larger than the sum of its proper divisors (1796037529).

52085087471 is a wasteful number, since it uses less digits than its factorization.

52085087471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796037528.

The product of its (nonzero) digits is 627200, while the sum is 47.

The spelling of 52085087471 in words is "fifty-two billion, eighty-five million, eighty-seven thousand, four hundred seventy-one".

Divisors: 1 29 1796037499 52085087471