Base | Representation |
---|---|
bin | 111111110100000100… |
… | …001011101011110000 |
3 | 20112212020001101001012 |
4 | 333310010023223300 |
5 | 2110311411342301 |
6 | 51251033130052 |
7 | 4643653662164 |
oct | 776404135360 |
9 | 215766041035 |
10 | 68519246576 |
11 | 27071368110 |
12 | 11342b59928 |
13 | 65cc7338b1 |
14 | 34600c2ca4 |
15 | 1bb0618ebb |
hex | ff410baf0 |
68519246576 has 80 divisors (see below), whose sum is σ = 148760666208. Its totient is φ = 30302822400.
The previous prime is 68519246563. The next prime is 68519246591. The reversal of 68519246576 is 67564291586.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 2678840 + ... + 2704296.
Almost surely, 268519246576 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 68519246576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74380333104).
68519246576 is an abundant number, since it is smaller than the sum of its proper divisors (80241419632).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68519246576 is a wasteful number, since it uses less digits than its factorization.
68519246576 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25890 (or 25884 counting only the distinct ones).
The product of its digits is 21772800, while the sum is 59.
The spelling of 68519246576 in words is "sixty-eight billion, five hundred nineteen million, two hundred forty-six thousand, five hundred seventy-six".
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