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568907664 = 243137112841
BaseRepresentation
bin100001111010001…
…101011110010000
31110122111111121020
4201322031132100
52131120021124
6132241355440
720045430633
oct4172153620
91418444536
10568907664
11272151826
1213a638b80
1390b30670
14557b1c1a
1534e2a379
hex21e8d790

568907664 has 80 divisors (see below), whose sum is σ = 1605147264. Its totient is φ = 172569600.

The previous prime is 568907663. The next prime is 568907687. The reversal of 568907664 is 466709865.

It is not an unprimeable number, because it can be changed into a prime (568907663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37884 + ... + 50724.

Almost surely, 2568907664 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 568907664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802573632).

568907664 is an abundant number, since it is smaller than the sum of its proper divisors (1036239600).

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

568907664 is a wasteful number, since it uses less digits than its factorization.

568907664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12936 (or 12930 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The square root of 568907664 is about 23851.7853419823. The cubic root of 568907664 is about 828.6044502326.

The spelling of 568907664 in words is "five hundred sixty-eight million, nine hundred seven thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 71 78 104 142 156 208 213 284 312 426 568 624 852 923 1136 1704 1846 2769 3408 3692 5538 7384 11076 12841 14768 22152 25682 38523 44304 51364 77046 102728 154092 166933 205456 308184 333866 500799 616368 667732 911711 1001598 1335464 1823422 2003196 2670928 2735133 3646844 4006392 5470266 7293688 8012784 10940532 11852243 14587376 21881064 23704486 35556729 43762128 47408972 71113458 94817944 142226916 189635888 284453832 568907664