Base | Representation |
---|---|
bin | 111111011000010111… |
… | …000110110000011111 |
3 | 20111122211110000021020 |
4 | 333120113012300133 |
5 | 2103333414220322 |
6 | 51132550535223 |
7 | 4626311144616 |
oct | 773027066037 |
9 | 214584400236 |
10 | 68054445087 |
11 | 26952a61952 |
12 | 11233367513 |
13 | 6557353a25 |
14 | 341849087d |
15 | 1b8490505c |
hex | fd85c6c1f |
68054445087 has 16 divisors (see below), whose sum is σ = 94797600480. Its totient is φ = 43371440000.
The previous prime is 68054445083. The next prime is 68054445097. The reversal of 68054445087 is 78054445086.
It is a cyclic number.
It is not a de Polignac number, because 68054445087 - 22 = 68054445083 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68054445083) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3863664 + ... + 3881237.
It is an arithmetic number, because the mean of its divisors is an integer number (5924850030).
Almost surely, 268054445087 is an apocalyptic number.
68054445087 is a deficient number, since it is larger than the sum of its proper divisors (26743155393).
68054445087 is a wasteful number, since it uses less digits than its factorization.
68054445087 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7745034.
The product of its (nonzero) digits is 4300800, while the sum is 51.
Subtracting 68054445087 from its reverse (78054445086), we obtain a palindrome (9999999999).
The spelling of 68054445087 in words is "sixty-eight billion, fifty-four million, four hundred forty-five thousand, eighty-seven".
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