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68155103753679 = 353428648451281
BaseRepresentation
bin11110111111100100110001…
…01111111011010111001111
322221022120020100211222120010
433133302120233323113033
532413123123030104204
6400542004502124303
720233021002211365
oct1737623057732717
9287276210758503
1068155103753679
111a7974652a6138
127788aba420693
132c04cca209897
1412b8a20515635
157d2d0d6e5d89
hex3dfc98bfb5cf

68155103753679 has 8 divisors (see below), whose sum is σ = 92588065476912. Its totient is φ = 44579438933120.

The previous prime is 68155103753677. The next prime is 68155103753699. The reversal of 68155103753679 is 97635730155186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68155103753679 - 21 = 68155103753677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68155103753677) 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, 214324225482 + ... + 214324225799.

It is an arithmetic number, because the mean of its divisors is an integer number (11573508184614).

Almost surely, 268155103753679 is an apocalyptic number.

68155103753679 is a deficient number, since it is larger than the sum of its proper divisors (24432961723233).

68155103753679 is a wasteful number, since it uses less digits than its factorization.

68155103753679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428648451337.

The product of its (nonzero) digits is 142884000, while the sum is 66.

The spelling of 68155103753679 in words is "sixty-eight trillion, one hundred fifty-five billion, one hundred three million, seven hundred fifty-three thousand, six hundred seventy-nine".

Divisors: 1 3 53 159 428648451281 1285945353843 22718367917893 68155103753679