Base | Representation |
---|---|
bin | 111011111111010000… |
… | …001010011001010111 |
3 | 20011020222111001120121 |
4 | 323333100022121113 |
5 | 2023403431002421 |
6 | 45331312012411 |
7 | 4440121463260 |
oct | 737720123127 |
9 | 204228431517 |
10 | 64411969111 |
11 | 25353971826 |
12 | 10597531107 |
13 | 60c68210b9 |
14 | 3190805967 |
15 | 1a1ec52d41 |
hex | eff40a657 |
64411969111 has 8 divisors (see below), whose sum is σ = 73620457344. Its totient is φ = 55205175480.
The previous prime is 64411969109. The next prime is 64411969121. The reversal of 64411969111 is 11196911446.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 64411969111 - 21 = 64411969109 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64411969121) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341125 + ... + 495166.
It is an arithmetic number, because the mean of its divisors is an integer number (9202557168).
Almost surely, 264411969111 is an apocalyptic number.
64411969111 is a deficient number, since it is larger than the sum of its proper divisors (9208488233).
64411969111 is a wasteful number, since it uses less digits than its factorization.
64411969111 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 847301.
The product of its digits is 46656, while the sum is 43.
The spelling of 64411969111 in words is "sixty-four billion, four hundred eleven million, nine hundred sixty-nine thousand, one hundred eleven".
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