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47438075 = 5217232211
BaseRepresentation
bin1011010011110…
…1100011111011
310022021002210202
42310331203323
544121004300
64412432415
71114134266
oct264754373
9108232722
1047438075
1124860a23
1213a7870b
139a9c289
14642bcdd
154270ad5
hex2d3d8fb

47438075 has 36 divisors (see below), whose sum is σ = 65417688. Its totient is φ = 34003200.

The previous prime is 47438063. The next prime is 47438089. The reversal of 47438075 is 57083474.

It is not a de Polignac number, because 47438075 - 212 = 47433979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 224720 + ... + 224930.

It is an arithmetic number, because the mean of its divisors is an integer number (1817158).

Almost surely, 247438075 is an apocalyptic number.

47438075 is a deficient number, since it is larger than the sum of its proper divisors (17979613).

47438075 is a wasteful number, since it uses less digits than its factorization.

47438075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 47438075 is about 6887.5303992070. The cubic root of 47438075 is about 362.0003739198. Note that the first 3 decimals are identical.

The spelling of 47438075 in words is "forty-seven million, four hundred thirty-eight thousand, seventy-five".

Divisors: 1 5 17 23 25 85 115 211 391 425 529 575 1055 1955 2645 3587 4853 5275 8993 9775 13225 17935 24265 44965 82501 89675 111619 121325 224825 412505 558095 1897523 2062525 2790475 9487615 47438075