| Base | Representation |
|---|---|
| bin | 100100100011000011… |
| … | …0000010100111000000 |
| 3 | 21111120210010102101200 |
| 4 | 1021012012002213000 |
| 5 | 2241214230300000 |
| 6 | 100020010301200 |
| 7 | 5445640615110 |
| oct | 1110606024700 |
| 9 | 244523112350 |
| 10 | 78485400000 |
| 11 | 30315a64747 |
| 12 | 13264727800 |
| 13 | 752a4002b7 |
| 14 | 3b27955040 |
| 15 | 209553d500 |
| hex | 12461829c0 |
78485400000 has 504 divisors, whose sum is σ = 321408491040. Its totient is φ = 17936640000.
The previous prime is 78485399957. The next prime is 78485400001. The reversal of 78485400000 is 458487.
78485400000 is a `hidden beast` number, since 78 + 48 + 540 + 0 + 0 + 0 + 0 = 666.
It is a tau number, because it is divible by the number of its divisors (504).
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78485400001) by changing a digit.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 12596886 + ... + 12603114.
It is an arithmetic number, because the mean of its divisors is an integer number (637715260).
Almost surely, 278485400000 is an apocalyptic number.
78485400000 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 78485400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160704245520).
78485400000 is an abundant number, since it is smaller than the sum of its proper divisors (242923091040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78485400000 is an equidigital number, since it uses as much as digits as its factorization.
78485400000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6279 (or 6246 counting only the distinct ones).
The product of its (nonzero) digits is 35840, while the sum is 36.
Adding to 78485400000 its reverse (458487), we get a palindrome (78485858487).
The spelling of 78485400000 in words is "seventy-eight billion, four hundred eighty-five million, four hundred thousand".
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