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66080002 = 237892973
BaseRepresentation
bin1111110000010…
…0110100000010
311121100012201111
43330010310002
5113404030002
610320153534
71431446032
oct374046402
9147305644
1066080002
113433397a
121a1688aa
13108c84c1
148ac18c2
155c043d7
hex3f04d02

66080002 has 8 divisors (see below), whose sum is σ = 101799036. Its totient is φ = 32146992.

The previous prime is 66079999. The next prime is 66080041. The reversal of 66080002 is 20008066.

It can be written as a sum of positive squares in 2 ways, for example, as 65141041 + 938961 = 8071^2 + 969^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446413 + ... + 446560.

Almost surely, 266080002 is an apocalyptic number.

66080002 is a deficient number, since it is larger than the sum of its proper divisors (35719034).

66080002 is a wasteful number, since it uses less digits than its factorization.

66080002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893012.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 66080002 is about 8128.9606961776. The cubic root of 66080002 is about 404.2872226378.

Adding to 66080002 its reverse (20008066), we get a palindrome (86088068).

The spelling of 66080002 in words is "sixty-six million, eighty thousand, two".

Divisors: 1 2 37 74 892973 1785946 33040001 66080002