Search a number
-
+
68042003757 = 3713318039939
BaseRepresentation
bin111111010111100111…
…101001010100101101
320111121222000220222020
4333113213221110231
52103322223110012
651131424140353
74626100326540
oct772747512455
9214558026866
1068042003757
1126946a34562
121122b1676b9
1365548b8bb0
143416972857
151b83798a8c
hexfd79e952d

68042003757 has 32 divisors (see below), whose sum is σ = 115260579840. Its totient is φ = 34732532160.

The previous prime is 68042003737. The next prime is 68042003761. The reversal of 68042003757 is 75730024086.

It is not a de Polignac number, because 68042003757 - 216 = 68041938221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68042003737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4011507 + ... + 4028432.

It is an arithmetic number, because the mean of its divisors is an integer number (3601893120).

Almost surely, 268042003757 is an apocalyptic number.

It is an amenable number.

68042003757 is a deficient number, since it is larger than the sum of its proper divisors (47218576083).

68042003757 is a wasteful number, since it uses less digits than its factorization.

68042003757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8039993.

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 68042003757 in words is "sixty-eight billion, forty-two million, three thousand, seven hundred fifty-seven".

Divisors: 1 3 7 13 21 31 39 91 93 217 273 403 651 1209 2821 8463 8039939 24119817 56279573 104519207 168838719 249238109 313557621 731634449 747714327 1744666763 2194903347 3240095417 5234000289 9720286251 22680667919 68042003757