Base | Representation |
---|---|
bin | 111111010101100110… |
… | …011010111011111010 |
3 | 20111112121021212111211 |
4 | 333111212122323322 |
5 | 2103240040101000 |
6 | 51124214113334 |
7 | 4625206360246 |
oct | 772546327372 |
9 | 214477255454 |
10 | 68008128250 |
11 | 269298a7377 |
12 | 1121b94b84a |
13 | 654a887c0a |
14 | 3412275426 |
15 | 1b808067ba |
hex | fd599aefa |
68008128250 has 32 divisors (see below), whose sum is σ = 127521239040. Its totient is φ = 27158374800.
The previous prime is 68008128247. The next prime is 68008128263. The reversal of 68008128250 is 5282180086.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72330 + ... + 375829.
It is an arithmetic number, because the mean of its divisors is an integer number (3985038720).
Almost surely, 268008128250 is an apocalyptic number.
68008128250 is a deficient number, since it is larger than the sum of its proper divisors (59513110790).
68008128250 is a wasteful number, since it uses less digits than its factorization.
68008128250 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 448783 (or 448773 counting only the distinct ones).
The product of its (nonzero) digits is 61440, while the sum is 40.
The spelling of 68008128250 in words is "sixty-eight billion, eight million, one hundred twenty-eight thousand, two hundred fifty".
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