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768746489 = 78910611163
BaseRepresentation
bin101101110100100…
…010001111111001
31222120112100221012
4231310202033321
53033244341424
6204140523305
725023144260
oct5564421771
91876470835
10768746489
11364a34685
12195550535
13c335c4a4
14741515d7
1547751b0e
hex2dd223f9

768746489 has 16 divisors (see below), whose sum is σ = 890040960. Its totient is φ = 650348160.

The previous prime is 768746399. The next prime is 768746497. The reversal of 768746489 is 984647867.

It is not a de Polignac number, because 768746489 - 28 = 768746233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768746789) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 660422 + ... + 661584.

It is an arithmetic number, because the mean of its divisors is an integer number (55627560).

Almost surely, 2768746489 is an apocalyptic number.

It is an amenable number.

768746489 is a deficient number, since it is larger than the sum of its proper divisors (121294471).

768746489 is a wasteful number, since it uses less digits than its factorization.

768746489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320.

The product of its digits is 16257024, while the sum is 59.

The square root of 768746489 is about 27726.2779507095. The cubic root of 768746489 is about 916.0680051117.

The spelling of 768746489 in words is "seven hundred sixty-eight million, seven hundred forty-six thousand, four hundred eighty-nine".

Divisors: 1 7 89 623 1061 1163 7427 8141 94429 103507 661003 724549 1233943 8637601 109820927 768746489