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66000130 = 257942859
BaseRepresentation
bin1111101111000…
…1010100000010
311121012011011021
43323301110002
5113344001010
610314340054
71430664130
oct373612402
9147164137
1066000130
1134289969
121a12a62a
131089b041
148aa0750
155bda8da
hex3ef1502

66000130 has 16 divisors (see below), whose sum is σ = 135771840. Its totient is φ = 22628592.

The previous prime is 66000083. The next prime is 66000149. The reversal of 66000130 is 3100066.

It is a happy number.

66000130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 471360 + ... + 471499.

It is an arithmetic number, because the mean of its divisors is an integer number (8485740).

Almost surely, 266000130 is an apocalyptic number.

66000130 is an abundant number, since it is smaller than the sum of its proper divisors (69771710).

66000130 is a wasteful number, since it uses less digits than its factorization.

66000130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942873.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 66000130 is about 8124.0464055789. The cubic root of 66000130 is about 404.1242673960.

Adding to 66000130 its reverse (3100066), we get a palindrome (69100196).

The spelling of 66000130 in words is "sixty-six million, one hundred thirty", and thus it is an aban number.

Divisors: 1 2 5 7 10 14 35 70 942859 1885718 4714295 6600013 9428590 13200026 33000065 66000130