Base | Representation |
---|---|
bin | 100000000100110011… |
… | …1101111010010100100 |
3 | 20120210102112201011220 |
4 | 1000021213233102210 |
5 | 2112032001421441 |
6 | 51350552300340 |
7 | 4655634616233 |
oct | 1001147572244 |
9 | 216712481156 |
10 | 68880888996 |
11 | 27237514447 |
12 | 114240a16b0 |
13 | 66596350aa |
14 | 3496140b1a |
15 | 1bd2252466 |
hex | 10099ef4a4 |
68880888996 has 24 divisors (see below), whose sum is σ = 161878352160. Its totient is φ = 22795113792.
The previous prime is 68880888959. The next prime is 68880889027. The reversal of 68880888996 is 69988808886.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20646081 + ... + 20649416.
It is an arithmetic number, because the mean of its divisors is an integer number (6744931340).
Almost surely, 268880888996 is an apocalyptic number.
It is an amenable number.
68880888996 is an abundant number, since it is smaller than the sum of its proper divisors (92997463164).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68880888996 is a wasteful number, since it uses less digits than its factorization.
68880888996 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41295643 (or 41295641 counting only the distinct ones).
The product of its (nonzero) digits is 764411904, while the sum is 78.
The spelling of 68880888996 in words is "sixty-eight billion, eight hundred eighty million, eight hundred eighty-eight thousand, nine hundred ninety-six".
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