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68184168 = 23313832633
BaseRepresentation
bin1000001000001…
…10100001101000
311202022010002120
410010012201220
5114423343133
610433231240
71455361443
oct404064150
9152263076
1068184168
1135540858
121aa02520
1311184180
1490ac65a
155ebcab3
hex4106868

68184168 has 64 divisors (see below), whose sum is σ = 185855040. Its totient is φ = 20719104.

The previous prime is 68184139. The next prime is 68184173. The reversal of 68184168 is 86148186.

It is a nude number because it is divisible by every one of its digits.

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, 24580 + ... + 27212.

It is an arithmetic number, because the mean of its divisors is an integer number (2903985).

Almost surely, 268184168 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 68184168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92927520).

68184168 is an abundant number, since it is smaller than the sum of its proper divisors (117670872).

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

68184168 is a wasteful number, since it uses less digits than its factorization.

68184168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738 (or 2734 counting only the distinct ones).

The product of its digits is 73728, while the sum is 42.

The square root of 68184168 is about 8257.3705257788. The cubic root of 68184168 is about 408.5336634485.

The spelling of 68184168 in words is "sixty-eight million, one hundred eighty-four thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 83 104 156 166 249 312 332 498 664 996 1079 1992 2158 2633 3237 4316 5266 6474 7899 8632 10532 12948 15798 21064 25896 31596 34229 63192 68458 102687 136916 205374 218539 273832 410748 437078 655617 821496 874156 1311234 1748312 2622468 2841007 5244936 5682014 8523021 11364028 17046042 22728056 34092084 68184168