Base | Representation |
---|---|
bin | 11111000010101001010011… |
… | …00011101000101100000000 |
3 | 22221200122120110001201202210 |
4 | 33201110221203220230000 |
5 | 32421340213241133010 |
6 | 401102254211342120 |
7 | 20243444416241304 |
oct | 1741245143505400 |
9 | 287618513051683 |
10 | 68260612442880 |
11 | 1a82818819aa40 |
12 | 77a5444bb1940 |
13 | 2c11c43083020 |
14 | 12bdb8d011d04 |
15 | 7d5936369b20 |
hex | 3e15298e8b00 |
68260612442880 has 576 divisors, whose sum is σ = 256321551951360. Its totient is φ = 15263111577600.
The previous prime is 68260612442879. The next prime is 68260612442903. The reversal of 68260612442880 is 8824421606286.
It is a super-2 number, since 2×682606124428802 (a number of 28 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 68260612442880.
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 63 ways as a sum of consecutive naturals, for example, 708865776 + ... + 708962064.
It is an arithmetic number, because the mean of its divisors is an integer number (445002694360).
Almost surely, 268260612442880 is an apocalyptic number.
68260612442880 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 68260612442880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128160775975680).
68260612442880 is an abundant number, since it is smaller than the sum of its proper divisors (188060939508480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68260612442880 is a wasteful number, since it uses less digits than its factorization.
68260612442880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 97628 (or 97614 counting only the distinct ones).
The product of its (nonzero) digits is 14155776, while the sum is 57.
The spelling of 68260612442880 in words is "sixty-eight trillion, two hundred sixty billion, six hundred twelve million, four hundred forty-two thousand, eight hundred eighty".
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