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66057041 = 2911511979
BaseRepresentation
bin1111101111111…
…1001101010001
311121022001020002
43323333031101
5113402311131
610315455345
71431322061
oct373771521
9147261202
1066057041
11343186a6
121a157555
13108bac0b
148ab73a1
155bec6cb
hex3eff351

66057041 has 8 divisors (see below), whose sum is σ = 68428800. Its totient is φ = 63691600.

The previous prime is 66057031. The next prime is 66057067. The reversal of 66057041 is 14075066.

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

It is a cyclic number.

It is not a de Polignac number, because 66057041 - 210 = 66056017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66056995 and 66057013.

It is not an unprimeable number, because it can be changed into a prime (66057031) 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, 32390 + ... + 34368.

It is an arithmetic number, because the mean of its divisors is an integer number (8553600).

Almost surely, 266057041 is an apocalyptic number.

It is an amenable number.

66057041 is a deficient number, since it is larger than the sum of its proper divisors (2371759).

66057041 is a wasteful number, since it uses less digits than its factorization.

66057041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 66057041 is about 8127.5482773097. The cubic root of 66057041 is about 404.2403909488.

The spelling of 66057041 in words is "sixty-six million, fifty-seven thousand, forty-one".

Divisors: 1 29 1151 1979 33379 57391 2277829 66057041