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5681000768 = 2688765637
BaseRepresentation
bin1010100101001110…
…10011000101000000
3112122220210201222212
411102213103011000
543113314011033
62335415321252
7260531465312
oct52247230500
915586721885
105681000768
11245585aa63
121126680228
136c6c78221
143bc6d17b2
15233b24748
hex1529d3140

5681000768 has 14 divisors (see below), whose sum is σ = 11273236026. Its totient is φ = 2840500352.

The previous prime is 5681000761. The next prime is 5681000777. The reversal of 5681000768 is 8670001865.

It can be written as a sum of positive squares in only one way, i.e., 4064317504 + 1616683264 = 63752^2 + 40208^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5681000761) by changing a digit.

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 as a sum of consecutive naturals, namely, 44382755 + ... + 44382882.

Almost surely, 25681000768 is an apocalyptic number.

It is an amenable number.

5681000768 is a deficient number, since it is larger than the sum of its proper divisors (5592235258).

5681000768 is an equidigital number, since it uses as much as digits as its factorization.

5681000768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88765649 (or 88765639 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 5681000768 is about 75372.4138395474. The cubic root of 5681000768 is about 1784.3290631510.

The spelling of 5681000768 in words is "five billion, six hundred eighty-one million, seven hundred sixty-eight", and thus it is an aban number.

Divisors: 1 2 4 8 16 32 64 88765637 177531274 355062548 710125096 1420250192 2840500384 5681000768