Base | Representation |
---|---|
bin | 1000001100111… |
… | …10001001011100 |
3 | 11210110200000012 |
4 | 10012132021130 |
5 | 120103231322 |
6 | 10454422352 |
7 | 1463556200 |
oct | 406361134 |
9 | 153420005 |
10 | 68805212 |
11 | 35925413 |
12 | 1b0619b8 |
13 | 11340a58 |
14 | 91d0b00 |
15 | 6091ae2 |
hex | 419e25c |
68805212 has 18 divisors (see below), whose sum is σ = 140068152. Its totient is φ = 29487864.
The previous prime is 68805199. The next prime is 68805223. The reversal of 68805212 is 21250886.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175328 + ... + 175719.
It is an arithmetic number, because the mean of its divisors is an integer number (7781564).
Almost surely, 268805212 is an apocalyptic number.
It is an amenable number.
68805212 is an abundant number, since it is smaller than the sum of its proper divisors (71262940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68805212 is a wasteful number, since it uses less digits than its factorization.
68805212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 351065 (or 351056 counting only the distinct ones).
The product of its (nonzero) digits is 7680, while the sum is 32.
The square root of 68805212 is about 8294.8907165797. The cubic root of 68805212 is about 409.7702698745.
The spelling of 68805212 in words is "sixty-eight million, eight hundred five thousand, two hundred twelve".
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