Base | Representation |
---|---|
bin | 111111110001001010… |
… | …001001101000000000 |
3 | 20112201211021202000000 |
4 | 333301022021220000 |
5 | 2110211420314420 |
6 | 51242132000000 |
7 | 4642522320543 |
oct | 776112115000 |
9 | 215654252000 |
10 | 68470479360 |
11 | 27046889628 |
12 | 1132a760000 |
13 | 65c25ba65a |
14 | 345782a85a |
15 | 1bab1d4690 |
hex | ff1289a00 |
68470479360 has 560 divisors, whose sum is σ = 259229345760. Its totient is φ = 17288847360.
The previous prime is 68470479317. The next prime is 68470479367. The reversal of 68470479360 is 6397407486.
It is a happy number.
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 = 68470479297 and 68470479306.
It is not an unprimeable number, because it can be changed into a prime (68470479367) by changing a digit.
It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 35457595 + ... + 35459525.
It is an arithmetic number, because the mean of its divisors is an integer number (462909546).
Almost surely, 268470479360 is an apocalyptic number.
68470479360 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 68470479360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129614672880).
68470479360 is an abundant number, since it is smaller than the sum of its proper divisors (190758866400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68470479360 is an equidigital number, since it uses as much as digits as its factorization.
68470479360 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1991 (or 1960 counting only the distinct ones).
The product of its (nonzero) digits is 6096384, while the sum is 54.
The spelling of 68470479360 in words is "sixty-eight billion, four hundred seventy million, four hundred seventy-nine thousand, three hundred sixty".
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