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768968156 = 221119798831
BaseRepresentation
bin101101110101011…
…000010111011100
31222120221122000002
4231311120113130
53033323440111
6204145353432
725025056445
oct5565302734
91876848002
10768968156
11365076180
12195638878
13c3409358
14741ac2cc
154779763b
hex2dd585dc

768968156 has 24 divisors (see below), whose sum is σ = 1468938240. Its totient is φ = 349314800.

The previous prime is 768968153. The next prime is 768968173. The reversal of 768968156 is 651869867.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768968153) 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, 82661 + ... + 91491.

It is an arithmetic number, because the mean of its divisors is an integer number (61205760).

Almost surely, 2768968156 is an apocalyptic number.

It is an amenable number.

768968156 is a deficient number, since it is larger than the sum of its proper divisors (699970084).

768968156 is a wasteful number, since it uses less digits than its factorization.

768968156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10825 (or 10823 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 56.

The square root of 768968156 is about 27730.2750797752. The cubic root of 768968156 is about 916.1560456361.

The spelling of 768968156 in words is "seven hundred sixty-eight million, nine hundred sixty-eight thousand, one hundred fifty-six".

Divisors: 1 2 4 11 22 44 1979 3958 7916 8831 17662 21769 35324 43538 87076 97141 194282 388564 17476549 34953098 69906196 192242039 384484078 768968156