| Base | Representation |
|---|---|
| bin | 111011111101110101… |
| … | …000001111100000000 |
| 3 | 20011012022112100000000 |
| 4 | 323331311001330000 |
| 5 | 2023331322014420 |
| 6 | 45325100000000 |
| 7 | 4436411433663 |
| oct | 737565017400 |
| 9 | 204168470000 |
| 10 | 64388079360 |
| 11 | 25341435030 |
| 12 | 1058b530000 |
| 13 | 60c18a8357 |
| 14 | 318b5876da |
| 15 | 1a1cad4690 |
| hex | efdd41f00 |
64388079360 has 1296 divisors, whose sum is σ = 273724974432. Its totient is φ = 14332723200.
The previous prime is 64388079331. The next prime is 64388079367. The reversal of 64388079360 is 6397088346.
64388079360 is a `hidden beast` number, since 6 + 438 + 80 + 79 + 3 + 60 = 666.
It is a tau number, because it is divible by the number of its divisors (1296).
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a junction number, because it is equal to n+sod(n) for n = 64388079297 and 64388079306.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64388079367) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1570440940 + ... + 1570440980.
It is an arithmetic number, because the mean of its divisors is an integer number (211207542).
Almost surely, 264388079360 is an apocalyptic number.
64388079360 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 64388079360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136862487216).
64388079360 is an abundant number, since it is smaller than the sum of its proper divisors (209336895072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64388079360 is an equidigital number, since it uses as much as digits as its factorization.
64388079360 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 114 (or 79 counting only the distinct ones).
The product of its (nonzero) digits is 5225472, while the sum is 54.
The spelling of 64388079360 in words is "sixty-four billion, three hundred eighty-eight million, seventy-nine thousand, three hundred sixty".
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