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768970657 = 71313960793
BaseRepresentation
bin101101110101011…
…000111110100001
31222120221202102201
4231311120332201
53033324030112
6204145413201
725025066650
oct5565307641
91876852381
10768970657
11365078044
1219563a201
13c340a530
14741ad197
1547798257
hex2dd58fa1

768970657 has 16 divisors (see below), whose sum is σ = 953249920. Its totient is φ = 604029312.

The previous prime is 768970651. The next prime is 768970669. The reversal of 768970657 is 756079867.

It is a cyclic number.

It is not a de Polignac number, because 768970657 - 27 = 768970529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 768970598 and 768970607.

It is not an unprimeable number, because it can be changed into a prime (768970651) 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, 17748 + ... + 43045.

It is an arithmetic number, because the mean of its divisors is an integer number (59578120).

Almost surely, 2768970657 is an apocalyptic number.

It is an amenable number.

768970657 is a deficient number, since it is larger than the sum of its proper divisors (184279263).

768970657 is a wasteful number, since it uses less digits than its factorization.

768970657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60952.

The product of its (nonzero) digits is 4445280, while the sum is 55.

The square root of 768970657 is about 27730.3201748555. The cubic root of 768970657 is about 916.1570388735.

The spelling of 768970657 in words is "seven hundred sixty-eight million, nine hundred seventy thousand, six hundred fifty-seven".

Divisors: 1 7 13 91 139 973 1807 12649 60793 425551 790309 5532163 8450227 59151589 109852951 768970657