Base | Representation |
---|---|
bin | 1000001001001… |
… | …00111001100000 |
3 | 11202112102202021 |
4 | 10010210321200 |
5 | 114441333301 |
6 | 10440031224 |
7 | 1456420240 |
oct | 404447140 |
9 | 152472667 |
10 | 68308576 |
11 | 35616276 |
12 | 1aa62514 |
13 | 111c899b |
14 | 9101b20 |
15 | 5ee48a1 |
hex | 4124e60 |
68308576 has 24 divisors (see below), whose sum is σ = 153694800. Its totient is φ = 29275008.
The previous prime is 68308547. The next prime is 68308579. The reversal of 68308576 is 67580386.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68308579) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152251 + ... + 152698.
It is an arithmetic number, because the mean of its divisors is an integer number (6403950).
Almost surely, 268308576 is an apocalyptic number.
It is an amenable number.
68308576 is an abundant number, since it is smaller than the sum of its proper divisors (85386224).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68308576 is a wasteful number, since it uses less digits than its factorization.
68308576 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 304966 (or 304958 counting only the distinct ones).
The product of its (nonzero) digits is 241920, while the sum is 43.
The square root of 68308576 is about 8264.9002413822. The cubic root of 68308576 is about 408.7819809945.
The spelling of 68308576 in words is "sixty-eight million, three hundred eight thousand, five hundred seventy-six".
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