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947106385 = 51392934651
BaseRepresentation
bin111000011100111…
…011001001010001
32110000010222201021
4320130323021101
53414424401020
6233551435441
732320162051
oct7034731121
92400128637
10947106385
11446687055
12225225b81
131212aa9a4
148dadd561
15582341aa
hex3873b251

947106385 has 16 divisors (see below), whose sum is σ = 1148857920. Its totient is φ = 749505600.

The previous prime is 947106383. The next prime is 947106467. The reversal of 947106385 is 583601749.

947106385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 947106385 - 21 = 947106383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (947106383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201310 + ... + 205960.

It is an arithmetic number, because the mean of its divisors is an integer number (71803620).

Almost surely, 2947106385 is an apocalyptic number.

It is an amenable number.

947106385 is a deficient number, since it is larger than the sum of its proper divisors (201751535).

947106385 is a wasteful number, since it uses less digits than its factorization.

947106385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 947106385 is about 30775.0935823110. The cubic root of 947106385 is about 982.0484657577.

The spelling of 947106385 in words is "nine hundred forty-seven million, one hundred six thousand, three hundred eighty-five".

Divisors: 1 5 139 293 695 1465 4651 23255 40727 203635 646489 1362743 3232445 6813715 189421277 947106385