Base | Representation |
---|---|
bin | 1000001000101… |
… | …11101110111000 |
3 | 11202102200202221 |
4 | 10010113232320 |
5 | 114433122043 |
6 | 10434533424 |
7 | 1456104100 |
oct | 404275670 |
9 | 152380687 |
10 | 68254648 |
11 | 35589800 |
12 | 1aa37274 |
13 | 111aa287 |
14 | 90ca200 |
15 | 5ed38ed |
hex | 4117bb8 |
68254648 has 72 divisors (see below), whose sum is σ = 163749600. Its totient is φ = 26574240.
The previous prime is 68254621. The next prime is 68254649. The reversal of 68254648 is 84645286.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68254649) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46713 + ... + 48151.
It is an arithmetic number, because the mean of its divisors is an integer number (2274300).
Almost surely, 268254648 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 68254648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81874800).
68254648 is an abundant number, since it is smaller than the sum of its proper divisors (95494952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68254648 is a wasteful number, since it uses less digits than its factorization.
68254648 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1481 (or 1459 counting only the distinct ones).
The product of its digits is 368640, while the sum is 43.
The square root of 68254648 is about 8261.6371258970. The cubic root of 68254648 is about 408.6743781147.
The spelling of 68254648 in words is "sixty-eight million, two hundred fifty-four thousand, six hundred forty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.224 sec. • engine limits •