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683316512 = 2546212
BaseRepresentation
bin101000101110101…
…001010100100000
31202121210002000222
4220232221110200
52344412112022
6151445502212
722635044264
oct5056512440
91677702028
10683316512
1132079489a
12170a11968
13ab74a6c8
1466a740a4
153eec9242
hex28ba9520

683316512 has 18 divisors (see below), whose sum is σ = 1345570569. Its totient is φ = 341584320.

The previous prime is 683316511. The next prime is 683316521. The reversal of 683316512 is 215613386.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 672053776 + 11262736 = 25924^2 + 3356^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=18484.

It is a super-2 number, since 2×6833165122 = 933842911143692288, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683316511) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 145562 + ... + 150182.

Almost surely, 2683316512 is an apocalyptic number.

It is an amenable number.

683316512 is a deficient number, since it is larger than the sum of its proper divisors (662254057).

683316512 is an frugal number, since it uses more digits than its factorization.

683316512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9252 (or 4623 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 683316512 is about 26140.3234869043. The cubic root of 683316512 is about 880.7932379232.

Adding to 683316512 its reverse (215613386), we get a palindrome (898929898).

The spelling of 683316512 in words is "six hundred eighty-three million, three hundred sixteen thousand, five hundred twelve".

Divisors: 1 2 4 8 16 32 4621 9242 18484 36968 73936 147872 21353641 42707282 85414564 170829128 341658256 683316512