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868747168 = 25235322271
BaseRepresentation
bin110011110010000…
…000011110100000
32020112200221002001
4303302000132200
53234344402133
6222112133344
730346141402
oct6362003640
92215627061
10868747168
11406426673
12202b37254
1310aca33a3
1483542b72
155140687d
hex33c807a0

868747168 has 48 divisors (see below), whose sum is σ = 1818464256. Its totient is φ = 407630080.

The previous prime is 868747163. The next prime is 868747249. The reversal of 868747168 is 861747868.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (868747163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27873 + ... + 50143.

It is an arithmetic number, because the mean of its divisors is an integer number (37884672).

Almost surely, 2868747168 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 868747168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (909232128).

868747168 is an abundant number, since it is smaller than the sum of its proper divisors (949717088).

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

868747168 is a wasteful number, since it uses less digits than its factorization.

868747168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22357 (or 22349 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 55.

The square root of 868747168 is about 29474.5172649189. The cubic root of 868747168 is about 954.1818117651.

It can be divided in two parts, 8687 and 47168, that added together give a palindrome (55855).

The spelling of 868747168 in words is "eight hundred sixty-eight million, seven hundred forty-seven thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 16 23 32 46 53 92 106 184 212 368 424 736 848 1219 1696 2438 4876 9752 19504 22271 39008 44542 89084 178168 356336 512233 712672 1024466 1180363 2048932 2360726 4097864 4721452 8195728 9442904 16391456 18885808 27148349 37771616 54296698 108593396 217186792 434373584 868747168