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1684672983 = 32726740841
BaseRepresentation
bin110010001101010…
…0001000111010111
311100102000020212200
41210122201013113
511422234013413
6435100215543
756514325020
oct14432410727
94312006780
101684672983
11794a54824
123b023a5b3
1320b041126
1411da55c47
159cd77573
hex646a11d7

1684672983 has 12 divisors (see below), whose sum is σ = 2781047568. Its totient is φ = 962670240.

The previous prime is 1684672933. The next prime is 1684672993. The reversal of 1684672983 is 3892764861.

It is not a de Polignac number, because 1684672983 - 29 = 1684672471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1684672933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13370358 + ... + 13370483.

It is an arithmetic number, because the mean of its divisors is an integer number (231753964).

Almost surely, 21684672983 is an apocalyptic number.

1684672983 is a deficient number, since it is larger than the sum of its proper divisors (1096374585).

1684672983 is a wasteful number, since it uses less digits than its factorization.

1684672983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26740854 (or 26740851 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 1684672983 is about 41044.7680344280. The cubic root of 1684672983 is about 1189.8855862977.

The spelling of 1684672983 in words is "one billion, six hundred eighty-four million, six hundred seventy-two thousand, nine hundred eighty-three".

Divisors: 1 3 7 9 21 63 26740841 80222523 187185887 240667569 561557661 1684672983