Base | Representation |
---|---|
bin | 100000000010100100… |
… | …1110111010101111111 |
3 | 20120121012112100120001 |
4 | 1000011021313111333 |
5 | 2111403310330144 |
6 | 51335314135131 |
7 | 4654034625550 |
oct | 1000511672577 |
9 | 216535470501 |
10 | 68805948799 |
11 | 271a91897a5 |
12 | 11402b814a7 |
13 | 6646c56a93 |
14 | 348a1d4327 |
15 | 1bca89cbd4 |
hex | 100527757f |
68805948799 has 8 divisors (see below), whose sum is σ = 78659584128. Its totient is φ = 58958367000.
The previous prime is 68805948787. The next prime is 68805948803. The reversal of 68805948799 is 99784950886.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68805948799 - 217 = 68805817727 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68805948199) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1488997 + ... + 1534510.
It is an arithmetic number, because the mean of its divisors is an integer number (9832448016).
Almost surely, 268805948799 is an apocalyptic number.
68805948799 is a deficient number, since it is larger than the sum of its proper divisors (9853635329).
68805948799 is a wasteful number, since it uses less digits than its factorization.
68805948799 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3026765.
The product of its (nonzero) digits is 313528320, while the sum is 73.
The spelling of 68805948799 in words is "sixty-eight billion, eight hundred five million, nine hundred forty-eight thousand, seven hundred ninety-nine".
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