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984394745 = 51811087729
BaseRepresentation
bin111010101011001…
…010101111111001
32112121022102201122
4322223022233321
54004001112440
6241402555025
733252134345
oct7253125771
92477272648
10984394745
11465735384
12235808a75
13128c351c9
1494a48625
155b64c7b5
hex3aacabf9

984394745 has 8 divisors (see below), whose sum is σ = 1187801160. Its totient is φ = 783164160.

The previous prime is 984394727. The next prime is 984394771. The reversal of 984394745 is 547493489.

It can be written as a sum of positive squares in 4 ways, for example, as 23580736 + 960814009 = 4856^2 + 30997^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 984394745 - 26 = 984394681 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 542960 + ... + 544769.

It is an arithmetic number, because the mean of its divisors is an integer number (148475145).

Almost surely, 2984394745 is an apocalyptic number.

It is an amenable number.

984394745 is a deficient number, since it is larger than the sum of its proper divisors (203406415).

984394745 is a wasteful number, since it uses less digits than its factorization.

984394745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087915.

The product of its digits is 4354560, while the sum is 53.

The square root of 984394745 is about 31375.0656573018. The cubic root of 984394745 is about 994.7709530606.

The spelling of 984394745 in words is "nine hundred eighty-four million, three hundred ninety-four thousand, seven hundred forty-five".

Divisors: 1 5 181 905 1087729 5438645 196878949 984394745