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66044 = 22111979
BaseRepresentation
bin10000000111111100
310100121002
4100013330
54103134
61225432
7363356
oct200774
9110532
1066044
1145690
1232278
13240a4
141a0d6
151487e
hex101fc

66044 has 24 divisors (see below), whose sum is σ = 134400. Its totient is φ = 28080.

The previous prime is 66041. The next prime is 66047. The reversal of 66044 is 44066.

It is an interprime number because it is at equal distance from previous prime (66041) and next prime (66047).

It is a d-powerful number, because it can be written as 62 + 63 + 0 + 44 + 48 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66041) 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, 797 + ... + 875.

It is an arithmetic number, because the mean of its divisors is an integer number (5600).

266044 is an apocalyptic number.

It is an amenable number.

66044 is an abundant number, since it is smaller than the sum of its proper divisors (68356).

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 (67200).

66044 is a wasteful number, since it uses less digits than its factorization.

66044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 66044 is about 256.9902721894. The cubic root of 66044 is about 40.4213787447.

The spelling of 66044 in words is "sixty-six thousand, forty-four", and thus it is an eban number.

Divisors: 1 2 4 11 19 22 38 44 76 79 158 209 316 418 836 869 1501 1738 3002 3476 6004 16511 33022 66044