Base | Representation |
---|---|
bin | 111011101100101110… |
… | …001011001001100001 |
3 | 20010110022110201100211 |
4 | 323230232023021201 |
5 | 2022234333210114 |
6 | 45240404214121 |
7 | 4426325046166 |
oct | 735456131141 |
9 | 203408421324 |
10 | 64101069409 |
11 | 25204423223 |
12 | 1050b39a341 |
13 | 60772a8090 |
14 | 31613d606d |
15 | 1a027de6c4 |
hex | eecb8b261 |
64101069409 has 8 divisors (see below), whose sum is σ = 69216998312. Its totient is φ = 59011580160.
The previous prime is 64101069401. The next prime is 64101069419. The reversal of 64101069409 is 90496010146.
It can be written as a sum of positive squares in 4 ways, for example, as 2350310400 + 61750759009 = 48480^2 + 248497^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 64101069409 - 23 = 64101069401 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (64101069401) 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, 6604872 + ... + 6614569.
It is an arithmetic number, because the mean of its divisors is an integer number (8652124789).
Almost surely, 264101069409 is an apocalyptic number.
It is an amenable number.
64101069409 is a deficient number, since it is larger than the sum of its proper divisors (5115928903).
64101069409 is a wasteful number, since it uses less digits than its factorization.
64101069409 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13219827.
The product of its (nonzero) digits is 46656, while the sum is 40.
The spelling of 64101069409 in words is "sixty-four billion, one hundred one million, sixty-nine thousand, four hundred nine".
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