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68230299769 is a prime number
BaseRepresentation
bin111111100010110101…
…111100000001111001
320112010002100100112121
4333202311330001321
52104213424043034
651202232041241
74633544656522
oct774265740171
9215102310477
1068230299769
1126a332530a5
1211282233221
136584905b58
143433989849
151b950901b4
hexfe2d7c079

68230299769 has 2 divisors, whose sum is σ = 68230299770. Its totient is φ = 68230299768.

The previous prime is 68230299763. The next prime is 68230299821. The reversal of 68230299769 is 96799203286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57118610025 + 11111689744 = 238995^2 + 105412^2 .

It is a cyclic number.

It is not a de Polignac number, because 68230299769 - 25 = 68230299737 is a prime.

It is a super-2 number, since 2×682302997692 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68230299763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34115149884 + 34115149885.

It is an arithmetic number, because the mean of its divisors is an integer number (34115149885).

Almost surely, 268230299769 is an apocalyptic number.

It is an amenable number.

68230299769 is a deficient number, since it is larger than the sum of its proper divisors (1).

68230299769 is an equidigital number, since it uses as much as digits as its factorization.

68230299769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17635968, while the sum is 61.

The spelling of 68230299769 in words is "sixty-eight billion, two hundred thirty million, two hundred ninety-nine thousand, seven hundred sixty-nine".