Search a number
-
+
66064141 = 11132391933
BaseRepresentation
bin1111110000000…
…0111100001101
311121022101222001
43330000330031
5113403023031
610315552301
71431351553
oct374007415
9147271861
1066064141
1134322a70
121a15b691
13108c1210
148ab9bd3
155bee861
hex3f00f0d

66064141 has 16 divisors (see below), whose sum is σ = 77978880. Its totient is φ = 55177920.

The previous prime is 66064133. The next prime is 66064157. The reversal of 66064141 is 14146066.

66064141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 66064141 - 23 = 66064133 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 (66064171) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33211 + ... + 35143.

It is an arithmetic number, because the mean of its divisors is an integer number (4873680).

Almost surely, 266064141 is an apocalyptic number.

It is an amenable number.

66064141 is a deficient number, since it is larger than the sum of its proper divisors (11914739).

66064141 is a wasteful number, since it uses less digits than its factorization.

66064141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 66064141 is about 8127.9850516595. The cubic root of 66064141 is about 404.2548734017.

The spelling of 66064141 in words is "sixty-six million, sixty-four thousand, one hundred forty-one".

Divisors: 1 11 13 143 239 1933 2629 3107 21263 25129 34177 276419 461987 5081857 6005831 66064141