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868525868 = 227432832549
BaseRepresentation
bin110011110001001…
…010011100101100
32020112021200111202
4303301022130230
53234320311433
6222103305032
730344230250
oct6361123454
92215250452
10868525868
11406295381
12202a4b178
1310ac26742
14834c6260
15513b0ee8
hex33c4a72c

868525868 has 48 divisors (see below), whose sum is σ = 1784428800. Its totient is φ = 362142144.

The previous prime is 868525841. The next prime is 868525909.

868525868 is nontrivially palindromic in base 10.

868525868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339458 + ... + 342006.

It is an arithmetic number, because the mean of its divisors is an integer number (37175600).

Almost surely, 2868525868 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 868525868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (892214400).

868525868 is an abundant number, since it is smaller than the sum of its proper divisors (915902932).

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

868525868 is a wasteful number, since it uses less digits than its factorization.

868525868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886 (or 2884 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 56.

The square root of 868525868 is about 29470.7629354925. The cubic root of 868525868 is about 954.1007838300.

The spelling of 868525868 in words is "eight hundred sixty-eight million, five hundred twenty-five thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 28 43 86 172 283 301 566 602 1132 1204 1981 2549 3962 5098 7924 10196 12169 17843 24338 35686 48676 71372 85183 109607 170366 219214 340732 438428 721367 767249 1442734 1534498 2885468 3068996 5049569 10099138 20198276 31018781 62037562 124075124 217131467 434262934 868525868