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768318080 = 2752395023
BaseRepresentation
bin101101110010111…
…001101010000000
31222112201121021012
4231302321222000
53033142134310
6204123420052
725016411255
oct5562715200
91875647235
10768318080
11364771822
12195384628
13c323c4aa
147407d42c
15476b9c05
hex2dcb9a80

768318080 has 64 divisors (see below), whose sum is σ = 1844812800. Its totient is φ = 305980416.

The previous prime is 768318079. The next prime is 768318107. The reversal of 768318080 is 80813867.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150449 + ... + 155471.

It is an arithmetic number, because the mean of its divisors is an integer number (28825200).

Almost surely, 2768318080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 768318080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (922406400).

768318080 is an abundant number, since it is smaller than the sum of its proper divisors (1076494720).

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

768318080 is a wasteful number, since it uses less digits than its factorization.

768318080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5281 (or 5269 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 768318080 is about 27718.5511886895. The cubic root of 768318080 is about 915.8978039213.

The spelling of 768318080 in words is "seven hundred sixty-eight million, three hundred eighteen thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 239 320 478 640 956 1195 1912 2390 3824 4780 5023 7648 9560 10046 15296 19120 20092 25115 30592 38240 40184 50230 76480 80368 100460 152960 160736 200920 321472 401840 642944 803680 1200497 1607360 2400994 3214720 4801988 6002485 9603976 12004970 19207952 24009940 38415904 48019880 76831808 96039760 153663616 192079520 384159040 768318080