Search a number
-
+
66292933 = 721352917
BaseRepresentation
bin1111110011100…
…0110011000101
311121202000210211
43330320303011
5113432333213
610324515421
71433323600
oct374706305
9147660724
1066292933
1134469953
121a24bb71
13109713b5
148b39337
155c4753d
hex3f38cc5

66292933 has 6 divisors (see below), whose sum is σ = 77116326. Its totient is φ = 56822472.

The previous prime is 66292921. The next prime is 66292987. The reversal of 66292933 is 33929266.

It can be written as a sum of positive squares in only one way, i.e., 64352484 + 1940449 = 8022^2 + 1393^2 .

It is a de Polignac number, because none of the positive numbers 2k-66292933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66292903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 676410 + ... + 676507.

It is an arithmetic number, because the mean of its divisors is an integer number (12852721).

Almost surely, 266292933 is an apocalyptic number.

It is an amenable number.

66292933 is a deficient number, since it is larger than the sum of its proper divisors (10823393).

66292933 is a wasteful number, since it uses less digits than its factorization.

66292933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352931 (or 1352924 counting only the distinct ones).

The product of its digits is 104976, while the sum is 40.

The square root of 66292933 is about 8142.0472241323. The cubic root of 66292933 is about 404.7210048228.

The spelling of 66292933 in words is "sixty-six million, two hundred ninety-two thousand, nine hundred thirty-three".

Divisors: 1 7 49 1352917 9470419 66292933