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68024142889 is a prime number
BaseRepresentation
bin111111010110100011…
…100000110000101001
320111120201102111110121
4333112203200300221
52103303140033024
651125545243241
74625462450203
oct772643406051
9214521374417
1068024142889
112693794540a
1211225193521
136550ca4331
143414443773
151b81e1b8e4
hexfd68e0c29

68024142889 has 2 divisors, whose sum is σ = 68024142890. Its totient is φ = 68024142888.

The previous prime is 68024142847. The next prime is 68024142937. The reversal of 68024142889 is 98824142086.

68024142889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49944651289 + 18079491600 = 223483^2 + 134460^2 .

It is a cyclic number.

It is not a de Polignac number, because 68024142889 - 27 = 68024142761 is a prime.

It is not a weakly prime, because it can be changed into another prime (68022142889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34012071444 + 34012071445.

It is an arithmetic number, because the mean of its divisors is an integer number (34012071445).

Almost surely, 268024142889 is an apocalyptic number.

It is an amenable number.

68024142889 is a deficient number, since it is larger than the sum of its proper divisors (1).

68024142889 is an equidigital number, since it uses as much as digits as its factorization.

68024142889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1769472, while the sum is 52.

The spelling of 68024142889 in words is "sixty-eight billion, twenty-four million, one hundred forty-two thousand, eight hundred eighty-nine".