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68979116059 = 746121375617
BaseRepresentation
bin100000000111101111…
…0011100100000011011
320121001021101011101021
41000033132130200123
52112232123203214
651404421503311
74661236545430
oct1001736344033
9217037334337
1068979116059
1127287a04937
1211450b71b37
136673aa7909
1434a51cdb87
151bdaba6924
hex100f79c81b

68979116059 has 8 divisors (see below), whose sum is σ = 79004284128. Its totient is φ = 58996700160.

The previous prime is 68979116057. The next prime is 68979116081. The reversal of 68979116059 is 95061197986.

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 68979116059 - 21 = 68979116057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68979115988 and 68979116006.

It is not an unprimeable number, because it can be changed into a prime (68979116057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10684582 + ... + 10691035.

It is an arithmetic number, because the mean of its divisors is an integer number (9875535516).

Almost surely, 268979116059 is an apocalyptic number.

68979116059 is a deficient number, since it is larger than the sum of its proper divisors (10025168069).

68979116059 is a wasteful number, since it uses less digits than its factorization.

68979116059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21376085.

The product of its (nonzero) digits is 7348320, while the sum is 61.

The spelling of 68979116059 in words is "sixty-eight billion, nine hundred seventy-nine million, one hundred sixteen thousand, fifty-nine".

Divisors: 1 7 461 3227 21375617 149629319 9854159437 68979116059