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68103872041 is a prime number
BaseRepresentation
bin111111011011010011…
…101001111000101001
320111210021110011022011
4333123103221320221
52103434042401131
651141514155521
74630451234542
oct773323517051
9214707404264
1068103872041
1126978951077
1211247a22ba1
13656466b34a
143420c794c9
151b88e1a0b1
hexfdb4e9e29

68103872041 has 2 divisors, whose sum is σ = 68103872042. Its totient is φ = 68103872040.

The previous prime is 68103871951. The next prime is 68103872051. The reversal of 68103872041 is 14027830186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39752384400 + 28351487641 = 199380^2 + 168379^2 .

It is a cyclic number.

It is not a de Polignac number, because 68103872041 - 211 = 68103869993 is a prime.

It is a super-3 number, since 3×681038720413 (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68103871985 and 68103872003.

It is not a weakly prime, because it can be changed into another prime (68103872051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34051936020 + 34051936021.

It is an arithmetic number, because the mean of its divisors is an integer number (34051936021).

Almost surely, 268103872041 is an apocalyptic number.

It is an amenable number.

68103872041 is a deficient number, since it is larger than the sum of its proper divisors (1).

68103872041 is an equidigital number, since it uses as much as digits as its factorization.

68103872041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 68103872041 in words is "sixty-eight billion, one hundred three million, eight hundred seventy-two thousand, forty-one".