Base | Representation |
---|---|
bin | 111111110001001110… |
… | …001101110010110100 |
3 | 20112201220021212210121 |
4 | 333301032031302310 |
5 | 2110212203420022 |
6 | 51242210501324 |
7 | 4642534346443 |
oct | 776116156264 |
9 | 215656255717 |
10 | 68471545012 |
11 | 27047447232 |
12 | 1132ab94844 |
13 | 65c28a1710 |
14 | 3457a26d5a |
15 | 1bab3452c7 |
hex | ff138dcb4 |
68471545012 has 48 divisors (see below), whose sum is σ = 129858144192. Its totient is φ = 31402990080.
The previous prime is 68471544941. The next prime is 68471545019. The reversal of 68471545012 is 21054517486.
It is a self number, because there is not a number n which added to its sum of digits gives 68471545012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68471545019) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7489308 + ... + 7498444.
It is an arithmetic number, because the mean of its divisors is an integer number (2705378004).
Almost surely, 268471545012 is an apocalyptic number.
It is an amenable number.
68471545012 is a deficient number, since it is larger than the sum of its proper divisors (61386599180).
68471545012 is a wasteful number, since it uses less digits than its factorization.
68471545012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10048 (or 10046 counting only the distinct ones).
The product of its (nonzero) digits is 268800, while the sum is 43.
The spelling of 68471545012 in words is "sixty-eight billion, four hundred seventy-one million, five hundred forty-five thousand, twelve".
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