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66044192 = 252063881
BaseRepresentation
bin1111101111110…
…0000100100000
311121021101121012
43323330010200
5113401403232
610315320052
71431236444
oct373740440
9147241535
1066044192
1134309a85
121a150028
13108b5106
148ab2824
155be89b2
hex3efc120

66044192 has 12 divisors (see below), whose sum is σ = 130024566. Its totient is φ = 33022080.

The previous prime is 66044183. The next prime is 66044197. The reversal of 66044192 is 29144066.

It is a happy number.

66044192 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 62789776 + 3254416 = 7924^2 + 1804^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 2063881 = 66044192 / (6 + 6 + 0 + 4 + 4 + 1 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (66044197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1031909 + ... + 1031972.

Almost surely, 266044192 is an apocalyptic number.

It is an amenable number.

66044192 is a deficient number, since it is larger than the sum of its proper divisors (63980374).

66044192 is a wasteful number, since it uses less digits than its factorization.

66044192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063891 (or 2063883 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 66044192 is about 8126.7577790900. The cubic root of 66044192 is about 404.2141791500.

The spelling of 66044192 in words is "sixty-six million, forty-four thousand, one hundred ninety-two".

Divisors: 1 2 4 8 16 32 2063881 4127762 8255524 16511048 33022096 66044192