Base | Representation |
---|---|
bin | 111111010110111010… |
… | …101100000111000110 |
3 | 20111121010212011220102 |
4 | 333112322230013012 |
5 | 2103311213444234 |
6 | 51130323404102 |
7 | 4625565214004 |
oct | 772672540706 |
9 | 214533764812 |
10 | 68030218694 |
11 | 26940315239 |
12 | 11227223632 |
13 | 6552320999 |
14 | 3415185a74 |
15 | 1b8271bc7e |
hex | fd6eac1c6 |
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".
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