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68844 = 2235737
BaseRepresentation
bin10000110011101100
310111102210
4100303230
54200334
61250420
7404466
oct206354
9114383
1068844
11477a6
1233a10
1325449
141b136
15155e9
hex10cec

68844 has 12 divisors (see below), whose sum is σ = 160664. Its totient is φ = 22944.

The previous prime is 68821. The next prime is 68863. The reversal of 68844 is 44886.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2857 + ... + 2880.

268844 is an apocalyptic number.

It is an amenable number.

68844 is an abundant number, since it is smaller than the sum of its proper divisors (91820).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80332).

68844 is a wasteful number, since it uses less digits than its factorization.

68844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744 (or 5742 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 68844 is about 262.3814017799. The cubic root of 68844 is about 40.9847256210.

The spelling of 68844 in words is "sixty-eight thousand, eight hundred forty-four".

Divisors: 1 2 3 4 6 12 5737 11474 17211 22948 34422 68844