Base | Representation |
---|---|
bin | 111100010001100000… |
… | …011111110111100001 |
3 | 20012001022210021222010 |
4 | 330101200133313201 |
5 | 2030020332204444 |
6 | 45421532303133 |
7 | 4450530655044 |
oct | 742140376741 |
9 | 205038707863 |
10 | 64718241249 |
11 | 254a083a5a2 |
12 | 10662011aa9 |
13 | 6145106a0c |
14 | 31bd36cc5b |
15 | 1a3baa02b9 |
hex | f1181fde1 |
64718241249 has 16 divisors (see below), whose sum is σ = 88628944320. Its totient is φ = 41982071040.
The previous prime is 64718241221. The next prime is 64718241253. The reversal of 64718241249 is 94214281746.
It is not a de Polignac number, because 64718241249 - 29 = 64718240737 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 64718241198 and 64718241207.
It is not an unprimeable number, because it can be changed into a prime (64718241449) 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 15 ways as a sum of consecutive naturals, for example, 647532 + ... + 740765.
It is an arithmetic number, because the mean of its divisors is an integer number (5539309020).
Almost surely, 264718241249 is an apocalyptic number.
It is an amenable number.
64718241249 is a deficient number, since it is larger than the sum of its proper divisors (23910703071).
64718241249 is a wasteful number, since it uses less digits than its factorization.
64718241249 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1388720.
The product of its digits is 774144, while the sum is 48.
The spelling of 64718241249 in words is "sixty-four billion, seven hundred eighteen million, two hundred forty-one thousand, two hundred forty-nine".
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