Base | Representation |
---|---|
bin | 111011111100101011… |
… | …011100010000111101 |
3 | 20011010222020020222020 |
4 | 323330223130100331 |
5 | 2023311402213131 |
6 | 45323130310353 |
7 | 4436055450351 |
oct | 737453342075 |
9 | 204128206866 |
10 | 64368788541 |
11 | 25331559602 |
12 | 10584b883b9 |
13 | 60ba8b2975 |
14 | 3188ba5461 |
15 | 1a1b073996 |
hex | efcadc43d |
64368788541 has 16 divisors (see below), whose sum is σ = 86639390208. Its totient is φ = 42505470000.
The previous prime is 64368788537. The next prime is 64368788557. The reversal of 64368788541 is 14588786346.
It is not a de Polignac number, because 64368788541 - 22 = 64368788537 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (64368788531) 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, 4509666 + ... + 4523916.
It is an arithmetic number, because the mean of its divisors is an integer number (5414961888).
Almost surely, 264368788541 is an apocalyptic number.
It is an amenable number.
64368788541 is a deficient number, since it is larger than the sum of its proper divisors (22270601667).
64368788541 is a wasteful number, since it uses less digits than its factorization.
64368788541 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28432.
The product of its digits is 30965760, while the sum is 60.
The spelling of 64368788541 in words is "sixty-four billion, three hundred sixty-eight million, seven hundred eighty-eight thousand, five hundred forty-one".
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