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66241708 = 22131273879
BaseRepresentation
bin1111110010110…
…0010010101100
311121122102112121
43330230102230
5113424213313
610323442324
71433021341
oct374542254
9147572477
1066241708
1134434415
121a2263a4
1310953ca0
148b247c8
155c3728d
hex3f2c4ac

66241708 has 12 divisors (see below), whose sum is σ = 124840240. Its totient is φ = 30573072.

The previous prime is 66241687. The next prime is 66241709. The reversal of 66241708 is 80714266.

It is not an unprimeable number, because it can be changed into a prime (66241709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636888 + ... + 636991.

Almost surely, 266241708 is an apocalyptic number.

It is an amenable number.

66241708 is a deficient number, since it is larger than the sum of its proper divisors (58598532).

66241708 is a wasteful number, since it uses less digits than its factorization.

66241708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273896 (or 1273894 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 66241708 is about 8138.9009085994. The cubic root of 66241708 is about 404.6167344041.

The spelling of 66241708 in words is "sixty-six million, two hundred forty-one thousand, seven hundred eight".

Divisors: 1 2 4 13 26 52 1273879 2547758 5095516 16560427 33120854 66241708