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47492973975 = 3521274986139
BaseRepresentation
bin101100001110110011…
…010100010110010111
311112120212102001110010
4230032303110112113
51234231200131400
633452403131303
73300630421656
oct541663242627
9145525361403
1047492973975
1119161600317
129255373b33
13462b550585
1424277b119d
15137e72c450
hexb0ecd4597

47492973975 has 24 divisors (see below), whose sum is σ = 79140014080. Its totient is φ = 25130135520.

The previous prime is 47492973961. The next prime is 47492973977. The reversal of 47492973975 is 57937929474.

It is not a de Polignac number, because 47492973975 - 24 = 47492973959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47492973977) 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 23 ways as a sum of consecutive naturals, for example, 2483545 + ... + 2502594.

Almost surely, 247492973975 is an apocalyptic number.

47492973975 is a deficient number, since it is larger than the sum of its proper divisors (31647040105).

47492973975 is a wasteful number, since it uses less digits than its factorization.

47492973975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986279 (or 4986274 counting only the distinct ones).

The product of its digits is 120022560, while the sum is 66.

The spelling of 47492973975 in words is "forty-seven billion, four hundred ninety-two million, nine hundred seventy-three thousand, nine hundred seventy-five".

Divisors: 1 3 5 15 25 75 127 381 635 1905 3175 9525 4986139 14958417 24930695 74792085 124653475 373960425 633239653 1899718959 3166198265 9498594795 15830991325 47492973975