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768797868 = 223173768617
BaseRepresentation
bin101101110100101…
…110110010101100
31222120121222102010
4231310232302230
53033303012433
6204142001220
725023450126
oct5564566254
91876558363
10768797868
11364a6a243
12195576210
13c33799a7
1474166216
1547761e63
hex2dd2ecac

768797868 has 24 divisors (see below), whose sum is σ = 1899383472. Its totient is φ = 241191424.

The previous prime is 768797867. The next prime is 768797879. The reversal of 768797868 is 868797867.

It is a junction number, because it is equal to n+sod(n) for n = 768797799 and 768797808.

It is not an unprimeable number, because it can be changed into a prime (768797867) 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 7 ways as a sum of consecutive naturals, for example, 1884105 + ... + 1884512.

It is an arithmetic number, because the mean of its divisors is an integer number (79140978).

Almost surely, 2768797868 is an apocalyptic number.

It is an amenable number.

768797868 is an abundant number, since it is smaller than the sum of its proper divisors (1130585604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

768797868 is a wasteful number, since it uses less digits than its factorization.

768797868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3768641 (or 3768639 counting only the distinct ones).

The product of its digits is 56899584, while the sum is 66.

The square root of 768797868 is about 27727.2044750278. The cubic root of 768797868 is about 916.0884130573.

Subtracting 768797868 from its reverse (868797867), we obtain a palindrome (99999999).

The spelling of 768797868 in words is "seven hundred sixty-eight million, seven hundred ninety-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 3768617 7537234 11305851 15074468 22611702 45223404 64066489 128132978 192199467 256265956 384398934 768797868