Base | Representation |
---|---|
bin | 10001111011010000100111… |
… | …011000101000001101100000 |
3 | 101100010221110001220121202020 |
4 | 101323100213120220031200 |
5 | 40313144414043443320 |
6 | 435402101253421440 |
7 | 22414635623565042 |
oct | 2173204730501540 |
9 | 340127401817666 |
10 | 78839080452960 |
11 | 23136514648863 |
12 | 8a1366063a880 |
13 | 34cb654c7b1b9 |
14 | 1567b9086da92 |
15 | 91abbab46940 |
hex | 47b427628360 |
78839080452960 has 384 divisors, whose sum is σ = 257910747494400. Its totient is φ = 20231492075520.
The previous prime is 78839080452953. The next prime is 78839080453009. The reversal of 78839080452960 is 6925408093887.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 359293680 + ... + 359513040.
It is an arithmetic number, because the mean of its divisors is an integer number (671642571600).
Almost surely, 278839080452960 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 78839080452960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128955373747200).
78839080452960 is an abundant number, since it is smaller than the sum of its proper divisors (179071667041440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78839080452960 is a wasteful number, since it uses less digits than its factorization.
78839080452960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 219694 (or 219686 counting only the distinct ones).
The product of its (nonzero) digits is 209018880, while the sum is 69.
The spelling of 78839080452960 in words is "seventy-eight trillion, eight hundred thirty-nine billion, eighty million, four hundred fifty-two thousand, nine hundred sixty".
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