Base | Representation |
---|---|
bin | 111111111001111101… |
… | …001101101011110010 |
3 | 20120010010000210012122 |
4 | 333321331031223302 |
5 | 2111012212124213 |
6 | 51304523354242 |
7 | 4646264040200 |
oct | 777175155362 |
9 | 216103023178 |
10 | 68618083058 |
11 | 27112134458 |
12 | 11370082982 |
13 | 661705a915 |
14 | 346d290070 |
15 | 1bb913dd08 |
hex | ff9f4daf2 |
68618083058 has 54 divisors (see below), whose sum is σ = 122550908751. Its totient is φ = 28730930424.
The previous prime is 68618082977. The next prime is 68618083073. The reversal of 68618083058 is 85038081686.
It can be written as a sum of positive squares in only one way, i.e., 34309041529 + 34309041529 = 185227^2 + 185227^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=185227.
It is a super-3 number, since 3×686180830583 (a number of 33 digits) contains 333 as substring.
It is a Duffinian number.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 121879085 + ... + 121879647.
Almost surely, 268618083058 is an apocalyptic number.
68618083058 is a deficient number, since it is larger than the sum of its proper divisors (53932825693).
68618083058 is an frugal number, since it uses more digits than its factorization.
68618083058 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1236 (or 619 counting only the distinct ones).
The product of its (nonzero) digits is 2211840, while the sum is 53.
The spelling of 68618083058 in words is "sixty-eight billion, six hundred eighteen million, eighty-three thousand, fifty-eight".
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