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3397963805 = 513121992
BaseRepresentation
bin1100101010001000…
…1101000000011101
322202210212110001022
43022202031000131
523424334320210
61321102053525
7150130134005
oct31242150035
98683773038
103397963805
111494075555
127a9b7a2a5
13421c92092
142433db005
1514d4a4155
hexca88d01d

3397963805 has 18 divisors (see below), whose sum is σ = 4129672158. Its totient is φ = 2684064240.

The previous prime is 3397963771. The next prime is 3397963817. The reversal of 3397963805 is 5083697933.

It can be written as a sum of positive squares in only one way, i.e., 2718371044 + 679592761 = 52138^2 + 26069^2 .

It is not a de Polignac number, because 3397963805 - 26 = 3397963741 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

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 17 ways as a sum of consecutive naturals, for example, 17075096 + ... + 17075294.

It is an arithmetic number, because the mean of its divisors is an integer number (229426231).

Almost surely, 23397963805 is an apocalyptic number.

It is an amenable number.

3397963805 is a deficient number, since it is larger than the sum of its proper divisors (731708353).

3397963805 is an frugal number, since it uses more digits than its factorization.

3397963805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 53.

The square root of 3397963805 is about 58292.0561054420. The cubic root of 3397963805 is about 1503.3943582792.

The spelling of 3397963805 in words is "three billion, three hundred ninety-seven million, nine hundred sixty-three thousand, eight hundred five".

Divisors: 1 5 131 199 655 995 17161 26069 39601 85805 130345 198005 3415039 5187731 17075195 25938655 679592761 3397963805