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47492527387 = 131362538377
BaseRepresentation
bin101100001110110001…
…100111010100011011
311112120211120100211211
4230032301213110123
51234231041334022
633452345403551
73300623551654
oct541661472433
9145524510754
1047492527387
1119161325838
1292551995b7
13462b425216
1424276d652b
15137e68ee77
hexb0ec6751b

47492527387 has 4 divisors (see below), whose sum is σ = 47855065896. Its totient is φ = 47129988880.

The previous prime is 47492527373. The next prime is 47492527447. The reversal of 47492527387 is 78372529474.

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 47492527387 - 227 = 47358309659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47492527987) 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 3 ways as a sum of consecutive naturals, for example, 181269058 + ... + 181269319.

It is an arithmetic number, because the mean of its divisors is an integer number (11963766474).

Almost surely, 247492527387 is an apocalyptic number.

47492527387 is a deficient number, since it is larger than the sum of its proper divisors (362538509).

47492527387 is a wasteful number, since it uses less digits than its factorization.

47492527387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362538508.

The product of its digits is 23708160, while the sum is 58.

The spelling of 47492527387 in words is "forty-seven billion, four hundred ninety-two million, five hundred twenty-seven thousand, three hundred eighty-seven".

Divisors: 1 131 362538377 47492527387