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66160271 = 531577951
BaseRepresentation
bin1111110001100…
…0011010001111
311121111021211102
43330120122033
5113414112041
610322013315
71432232042
oct374303217
9147437742
1066160271
1134389211
121a1a723b
1310925bb8
148b02c59
155c1d09b
hex3f1868f

66160271 has 8 divisors (see below), whose sum is σ = 67846464. Its totient is φ = 64490400.

The previous prime is 66160267. The next prime is 66160313. The reversal of 66160271 is 17206166.

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

It is not a de Polignac number, because 66160271 - 22 = 66160267 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66163271) 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, 4346 + ... + 12296.

It is an arithmetic number, because the mean of its divisors is an integer number (8480808).

Almost surely, 266160271 is an apocalyptic number.

66160271 is a deficient number, since it is larger than the sum of its proper divisors (1686193).

66160271 is a wasteful number, since it uses less digits than its factorization.

66160271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8161.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 66160271 is about 8133.8964217649. The cubic root of 66160271 is about 404.4508556028.

The spelling of 66160271 in words is "sixty-six million, one hundred sixty thousand, two hundred seventy-one".

Divisors: 1 53 157 7951 8321 421403 1248307 66160271