Base | Representation |
---|---|
bin | 100100100100011110… |
… | …1011010011110000000 |
3 | 21111201010120122011000 |
4 | 1021020331122132000 |
5 | 2241314032020310 |
6 | 100024444452000 |
7 | 5450063324112 |
oct | 1111075323600 |
9 | 244633518130 |
10 | 78533470080 |
11 | 3034010748a |
12 | 1327884a000 |
13 | 7537361130 |
14 | 3b300a93b2 |
15 | 20998864c0 |
hex | 1248f5a780 |
78533470080 has 512 divisors, whose sum is σ = 303701328000. Its totient is φ = 19062521856.
The previous prime is 78533470073. The next prime is 78533470133. The reversal of 78533470080 is 8007433587.
78533470080 is a `hidden beast` number, since 78 + 5 + 33 + 470 + 0 + 80 = 666.
It is a Harshad number since it is a multiple of its sum of digits (45).
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, 16396326 + ... + 16401114.
Almost surely, 278533470080 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 78533470080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151850664000).
78533470080 is an abundant number, since it is smaller than the sum of its proper divisors (225167857920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78533470080 is a wasteful number, since it uses less digits than its factorization.
78533470080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4903 (or 4885 counting only the distinct ones).
The product of its (nonzero) digits is 564480, while the sum is 45.
The spelling of 78533470080 in words is "seventy-eight billion, five hundred thirty-three million, four hundred seventy thousand, eighty".
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