Base | Representation |
---|---|
bin | 111111110010101111… |
… | …001000000000000000 |
3 | 20112210200002112212020 |
4 | 333302233020000000 |
5 | 2110240204333443 |
6 | 51244515201440 |
7 | 4643263314330 |
oct | 776257100000 |
9 | 215720075766 |
10 | 68496949248 |
11 | 2705a818872 |
12 | 113375a6280 |
13 | 65c7c27900 |
14 | 345b15b0c0 |
15 | 1bad6b2583 |
hex | ff2bc8000 |
68496949248 has 768 divisors, whose sum is σ = 245614694400. Its totient is φ = 16562257920.
The previous prime is 68496949211. The next prime is 68496949271. The reversal of 68496949248 is 84294969486.
It is a tau number, because it is divible by the number of its divisors (768).
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2209578993 + ... + 2209579023.
It is an arithmetic number, because the mean of its divisors is an integer number (319810800).
Almost surely, 268496949248 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68496949248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122807347200).
68496949248 is an abundant number, since it is smaller than the sum of its proper divisors (177117745152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68496949248 is a wasteful number, since it uses less digits than its factorization.
68496949248 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 116 (or 75 counting only the distinct ones).
The product of its digits is 214990848, while the sum is 69.
The spelling of 68496949248 in words is "sixty-eight billion, four hundred ninety-six million, nine hundred forty-nine thousand, two hundred forty-eight".
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