| Base | Representation |
|---|---|
| bin | 1001101111010101101100100… |
| … | …1101011011100000000000000 |
| 3 | 10022212200120212211000202020000 |
| 4 | 2123311123021223130000000 |
| 5 | 1204313034134143233300 |
| 6 | 10425353535010120000 |
| 7 | 264235145135204100 |
| oct | 23365331153340000 |
| 9 | 3285616784022200 |
| 10 | 685368494899200 |
| 11 | 18941a16793a452 |
| 12 | 64a5100a280000 |
| 13 | 23556c82c1c448 |
| 14 | c136025493200 |
| 15 | 5438019de1c00 |
| hex | 26f56c9adc000 |
685368494899200 has 2700 divisors, whose sum is σ = 3127395355761600. Its totient is φ = 147434671964160.
The previous prime is 685368494899147. The next prime is 685368494899301. The reversal of 685368494899200 is 2998494863586.
685368494899200 is a `hidden beast` number, since 6 + 8 + 5 + 3 + 6 + 8 + 49 + 489 + 92 + 0 + 0 = 666.
It is a tau number, because it is divible by the number of its divisors (2700).
It is a Harshad number since it is a multiple of its sum of digits (81).
It is a self number, because there is not a number n which added to its sum of digits gives 685368494899200.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 27636928401 + ... + 27636953199.
It is an arithmetic number, because the mean of its divisors is an integer number (1158294576208).
Almost surely, 2685368494899200 is an apocalyptic number.
685368494899200 is a gapful number since it is divisible by the number (60) 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 685368494899200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1563697677880800).
685368494899200 is an abundant number, since it is smaller than the sum of its proper divisors (2442026860862400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
685368494899200 is a wasteful number, since it uses less digits than its factorization.
685368494899200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24880 (or 24833 counting only the distinct ones).
The product of its (nonzero) digits is 6449725440, while the sum is 81.
The spelling of 685368494899200 in words is "six hundred eighty-five trillion, three hundred sixty-eight billion, four hundred ninety-four million, eight hundred ninety-nine thousand, two hundred".
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