Base | Representation |
---|---|
bin | 1000001100111… |
… | …10000011101111 |
3 | 11210110122111200 |
4 | 10012132003233 |
5 | 120103223342 |
6 | 10454420543 |
7 | 1463555136 |
oct | 406360357 |
9 | 153418450 |
10 | 68804847 |
11 | 35925111 |
12 | 1b061753 |
13 | 11340837 |
14 | 91d091d |
15 | 609194c |
hex | 419e0ef |
68804847 has 24 divisors (see below), whose sum is σ = 102429600. Its totient is φ = 44478720.
The previous prime is 68804839. The next prime is 68804881. The reversal of 68804847 is 74840886.
It is not a de Polignac number, because 68804847 - 23 = 68804839 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68804837) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72963 + ... + 73899.
It is an arithmetic number, because the mean of its divisors is an integer number (4267900).
Almost surely, 268804847 is an apocalyptic number.
68804847 is a deficient number, since it is larger than the sum of its proper divisors (33624753).
68804847 is a wasteful number, since it uses less digits than its factorization.
68804847 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1183 (or 1180 counting only the distinct ones).
The product of its (nonzero) digits is 344064, while the sum is 45.
The square root of 68804847 is about 8294.8687150551. The cubic root of 68804847 is about 409.7695452860.
The spelling of 68804847 in words is "sixty-eight million, eight hundred four thousand, eight hundred forty-seven".
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