Search a number
-
+
68008950136 = 23181120139107
BaseRepresentation
bin111111010101101001…
…100011100101111000
320111112122211121221001
4333111221203211320
52103240242401021
651124243454344
74625216352361
oct772551434570
9214478747831
1068008950136
112692a308916
12112200873b4
13654aab503a
14341240ab68
151b8091a091
hexfd5a63978

68008950136 has 32 divisors (see below), whose sum is σ = 128331337680. Its totient is φ = 33787584000.

The previous prime is 68008950101. The next prime is 68008950137. The reversal of 68008950136 is 63105980086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68008950137) 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, 1719495 + ... + 1758601.

Almost surely, 268008950136 is an apocalyptic number.

It is an amenable number.

68008950136 is a deficient number, since it is larger than the sum of its proper divisors (60322387544).

68008950136 is a wasteful number, since it uses less digits than its factorization.

68008950136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40495 (or 40491 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 68008950136 in words is "sixty-eight billion, eight million, nine hundred fifty thousand, one hundred thirty-six".

Divisors: 1 2 4 8 181 362 724 1201 1448 2402 4804 9608 39107 78214 156428 217381 312856 434762 869524 1739048 7078367 14156734 28313468 46967507 56626936 93935014 187870028 375740056 8501118767 17002237534 34004475068 68008950136