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47474745523 = 198928074953
BaseRepresentation
bin101100001101101101…
…110010000010110011
311112112121002221201021
4230031231302002303
51234212013324043
633450512320311
73300316451542
oct541555620263
9145477087637
1047474745523
111915228aa87
12924b243097
13462783a5ca
1424251c8159
15137cd2b3ed
hexb0db720b3

47474745523 has 8 divisors (see below), whose sum is σ = 50534917200. Its totient is φ = 44470723968.

The previous prime is 47474745509. The next prime is 47474745551. The reversal of 47474745523 is 32554747474.

47474745523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47474745523 - 25 = 47474745491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47474745503) 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, 14035786 + ... + 14039167.

It is an arithmetic number, because the mean of its divisors is an integer number (6316864650).

Almost surely, 247474745523 is an apocalyptic number.

47474745523 is a deficient number, since it is larger than the sum of its proper divisors (3060171677).

47474745523 is a wasteful number, since it uses less digits than its factorization.

47474745523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28075061.

The product of its digits is 13171200, while the sum is 52.

The spelling of 47474745523 in words is "forty-seven billion, four hundred seventy-four million, seven hundred forty-five thousand, five hundred twenty-three".

Divisors: 1 19 89 1691 28074953 533424107 2498670817 47474745523