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3280386742 = 217891084067
BaseRepresentation
bin1100001110000110…
…1011101010110110
322110121121220122021
43003201223222312
523204234333432
61301302023354
7144201553513
oct30341535266
98417556567
103280386742
111433769126
12776717b5a
13403805c59
1423195230a
15142ecb697
hexc386bab6

3280386742 has 16 divisors (see below), whose sum is σ = 5268570480. Its totient is φ = 1526364928.

The previous prime is 3280386713. The next prime is 3280386751. The reversal of 3280386742 is 2476830823.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 539008 + ... + 545059.

It is an arithmetic number, because the mean of its divisors is an integer number (329285655).

Almost surely, 23280386742 is an apocalyptic number.

3280386742 is a deficient number, since it is larger than the sum of its proper divisors (1988183738).

3280386742 is a wasteful number, since it uses less digits than its factorization.

3280386742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084175.

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 3280386742 is about 57274.6605577021. The cubic root of 3280386742 is about 1485.8501621407.

The spelling of 3280386742 in words is "three billion, two hundred eighty million, three hundred eighty-six thousand, seven hundred forty-two".

Divisors: 1 2 17 34 89 178 1513 3026 1084067 2168134 18429139 36858278 96481963 192963926 1640193371 3280386742