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160666061 = 2931717477
BaseRepresentation
bin10011001001110…
…01000111001101
3102012022200101212
421210321013031
5312112303221
623535344205
73660432113
oct1144710715
9365280355
10160666061
1182767876
1245982065
132739499a
14174a3ab3
15e189b5b
hex99391cd

160666061 has 8 divisors (see below), whose sum is σ = 166740120. Its totient is φ = 154627648.

The previous prime is 160666057. The next prime is 160666111.

160666061 is nontrivially palindromic in base 10.

160666061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2157961 + 158508100 = 1469^2 + 12590^2 .

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 160666061 - 22 = 160666057 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 (160666001) 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, 455 + ... + 17931.

It is an arithmetic number, because the mean of its divisors is an integer number (20842515).

Almost surely, 2160666061 is an apocalyptic number.

It is an amenable number.

160666061 is a deficient number, since it is larger than the sum of its proper divisors (6074059).

160666061 is a wasteful number, since it uses less digits than its factorization.

160666061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17823.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 160666061 is about 12675.4116698433. The cubic root of 160666061 is about 543.6358002828.

The spelling of 160666061 in words is "one hundred sixty million, six hundred sixty-six thousand, sixty-one".

Divisors: 1 29 317 9193 17477 506833 5540209 160666061