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66379192 = 23117310333
BaseRepresentation
bin1111110100110…
…1110110111000
311121220102010121
43331031312320
5113443113232
610330423024
71434133225
oct375156670
9147812117
1066379192
1134518740
121a291a74
13109a1739
148b5c94c
155c62d97
hex3f4ddb8

66379192 has 32 divisors (see below), whose sum is σ = 137648880. Its totient is φ = 29756160.

The previous prime is 66379177. The next prime is 66379193. The reversal of 66379192 is 29197366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66379193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1258 + ... + 11590.

Almost surely, 266379192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66379192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68824440).

66379192 is an abundant number, since it is smaller than the sum of its proper divisors (71269688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66379192 is a wasteful number, since it uses less digits than its factorization.

66379192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10423 (or 10419 counting only the distinct ones).

The product of its digits is 122472, while the sum is 43.

The square root of 66379192 is about 8147.3426342581. The cubic root of 66379192 is about 404.8964669561.

The spelling of 66379192 in words is "sixty-six million, three hundred seventy-nine thousand, one hundred ninety-two".

Divisors: 1 2 4 8 11 22 44 73 88 146 292 584 803 1606 3212 6424 10333 20666 41332 82664 113663 227326 454652 754309 909304 1508618 3017236 6034472 8297399 16594798 33189596 66379192