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768848866 = 21766921757
BaseRepresentation
bin101101110100111…
…011001111100010
31222120201120100221
4231310323033202
53033311130431
6204143033254
725024051612
oct5564731742
91876646327
10768848866
11364aa4595
1219559b82a
13c3396c76
147417aa42
1547772111
hex2dd3b3e2

768848866 has 8 divisors (see below), whose sum is σ = 1153391580. Its totient is φ = 384385008.

The previous prime is 768848803. The next prime is 768848867. The reversal of 768848866 is 668848867.

It can be written as a sum of positive squares in 2 ways, for example, as 762919641 + 5929225 = 27621^2 + 2435^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7688488662 = 1182257157498971912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (768848867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24460 + ... + 46216.

Almost surely, 2768848866 is an apocalyptic number.

768848866 is a deficient number, since it is larger than the sum of its proper divisors (384542714).

768848866 is a wasteful number, since it uses less digits than its factorization.

768848866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39428.

The product of its digits is 24772608, while the sum is 61.

The square root of 768848866 is about 27728.1240981066. The cubic root of 768848866 is about 916.1086687690.

Subtracting from 768848866 its reverse (668848867), we obtain a palindrome (99999999).

The spelling of 768848866 in words is "seven hundred sixty-eight million, eight hundred forty-eight thousand, eight hundred sixty-six".

Divisors: 1 2 17669 21757 35338 43514 384424433 768848866