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68939422419 = 3711092960171
BaseRepresentation
bin100000000110100011…
…1000001101011010011
320120221111200111221110
41000031013001223103
52112141443004134
651400443024403
74660245264510
oct1001507015323
9216844614843
1068939422419
112726756347a
121143b80b103
1366687ba65a
14349dc1a307
151bd74657e9
hex100d1c1ad3

68939422419 has 16 divisors (see below), whose sum is σ = 105145309440. Its totient is φ = 39358420320.

The previous prime is 68939422417. The next prime is 68939422457. The reversal of 68939422419 is 91422493986.

It is not a de Polignac number, because 68939422419 - 21 = 68939422417 is a prime.

It is a super-3 number, since 3×689394224193 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (68939422417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1456797 + ... + 1503374.

It is an arithmetic number, because the mean of its divisors is an integer number (6571581840).

Almost surely, 268939422419 is an apocalyptic number.

68939422419 is a deficient number, since it is larger than the sum of its proper divisors (36205887021).

68939422419 is a wasteful number, since it uses less digits than its factorization.

68939422419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961290.

The product of its digits is 6718464, while the sum is 57.

The spelling of 68939422419 in words is "sixty-eight billion, nine hundred thirty-nine million, four hundred twenty-two thousand, four hundred nineteen".

Divisors: 1 3 7 21 1109 3327 7763 23289 2960171 8880513 20721197 62163591 3282829639 9848488917 22979807473 68939422419