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47129244 = 2233927437
BaseRepresentation
bin1011001111001…
…0001010011100
310021200102011120
42303302022130
544031113434
64402050540
71111410021
oct263621234
9107612146
1047129244
112466a998
1213949a50
1399c1836
14638b548
15420e349
hex2cf229c

47129244 has 12 divisors (see below), whose sum is σ = 109968264. Its totient is φ = 15709744.

The previous prime is 47129239. The next prime is 47129261. The reversal of 47129244 is 44292174.

47129244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1963707 + ... + 1963730.

It is an arithmetic number, because the mean of its divisors is an integer number (9164022).

Almost surely, 247129244 is an apocalyptic number.

It is an amenable number.

47129244 is an abundant number, since it is smaller than the sum of its proper divisors (62839020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47129244 is a wasteful number, since it uses less digits than its factorization.

47129244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3927444 (or 3927442 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 47129244 is about 6865.0742166418. The cubic root of 47129244 is about 361.2130989634.

The spelling of 47129244 in words is "forty-seven million, one hundred twenty-nine thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 3927437 7854874 11782311 15709748 23564622 47129244