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68030218694 = 2191790268913
BaseRepresentation
bin111111010110111010…
…101100000111000110
320111121010212011220102
4333112322230013012
52103311213444234
651130323404102
74625565214004
oct772672540706
9214533764812
1068030218694
1126940315239
1211227223632
136552320999
143415185a74
151b8271bc7e
hexfd6eac1c6

68030218694 has 8 divisors (see below), whose sum is σ = 107416134840. Its totient is φ = 32224840416.

The previous prime is 68030218691. The next prime is 68030218721. The reversal of 68030218694 is 49681203086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×680302186942 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68030218691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895134419 + ... + 895134494.

It is an arithmetic number, because the mean of its divisors is an integer number (13427016855).

Almost surely, 268030218694 is an apocalyptic number.

68030218694 is a deficient number, since it is larger than the sum of its proper divisors (39385916146).

68030218694 is a wasteful number, since it uses less digits than its factorization.

68030218694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790268934.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 68030218694 in words is "sixty-eight billion, thirty million, two hundred eighteen thousand, six hundred ninety-four".

Divisors: 1 2 19 38 1790268913 3580537826 34015109347 68030218694