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47853187471 = 233205378487
BaseRepresentation
bin101100100100010001…
…011011000110001111
311120111222012210110201
4230210101123012033
51241000403444341
633552231514331
73312563245045
oct544421330617
9146458183421
1047853187471
1119326971021
129335b289a7
13468807155b
14245d57a395
1513a1182331
hexb2445b18f

47853187471 has 4 divisors (see below), whose sum is σ = 48058566192. Its totient is φ = 47647808752.

The previous prime is 47853187469. The next prime is 47853187507. The reversal of 47853187471 is 17478135874.

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 47853187471 - 21 = 47853187469 is a prime.

It is a super-3 number, since 3×478531874713 (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 (47853187451) 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, 102689011 + ... + 102689476.

It is an arithmetic number, because the mean of its divisors is an integer number (12014641548).

Almost surely, 247853187471 is an apocalyptic number.

47853187471 is a deficient number, since it is larger than the sum of its proper divisors (205378721).

47853187471 is a wasteful number, since it uses less digits than its factorization.

47853187471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205378720.

The product of its digits is 5268480, while the sum is 55.

The spelling of 47853187471 in words is "forty-seven billion, eight hundred fifty-three million, one hundred eighty-seven thousand, four hundred seventy-one".

Divisors: 1 233 205378487 47853187471