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6885456 = 243672141
BaseRepresentation
bin11010010001000001010000
3110221211001220
4122101001100
53230313311
6403325040
7112345134
oct32210120
913854056
106885456
113983166
122380780
131571046
14cb33c4
15910206
hex691050

6885456 has 40 divisors (see below), whose sum is σ = 18061344. Its totient is φ = 2259840.

The previous prime is 6885451. The next prime is 6885457. The reversal of 6885456 is 6545886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6885451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2146 + ... + 4286.

Almost surely, 26885456 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 6885456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9030672).

6885456 is an abundant number, since it is smaller than the sum of its proper divisors (11175888).

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

6885456 is a wasteful number, since it uses less digits than its factorization.

6885456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219 (or 2213 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 6885456 is about 2624.0152438582. The cubic root of 6885456 is about 190.2439709883.

It can be divided in two parts, 688545 and 6, that added together give a triangular number (688551 = T1173).

The spelling of 6885456 in words is "six million, eight hundred eighty-five thousand, four hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 67 134 201 268 402 536 804 1072 1608 2141 3216 4282 6423 8564 12846 17128 25692 34256 51384 102768 143447 286894 430341 573788 860682 1147576 1721364 2295152 3442728 6885456