Base | Representation |
---|---|
bin | 111100111001110001… |
… | …111110001001101100 |
3 | 20020210102011211202202 |
4 | 330321301332021230 |
5 | 2032411320113010 |
6 | 50012550241032 |
7 | 4503344031641 |
oct | 747161761154 |
9 | 206712154682 |
10 | 65393910380 |
11 | 25808180837 |
12 | 10810356178 |
13 | 62220a7636 |
14 | 3244db1dc8 |
15 | 1a7b0686a5 |
hex | f39c7e26c |
65393910380 has 48 divisors (see below), whose sum is σ = 141891907584. Its totient is φ = 25289703360.
The previous prime is 65393910377. The next prime is 65393910389. The reversal of 65393910380 is 8301939356.
It is not an unprimeable number, because it can be changed into a prime (65393910389) 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, 609449 + ... + 708671.
It is an arithmetic number, because the mean of its divisors is an integer number (2956081408).
Almost surely, 265393910380 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 65393910380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70945953792).
65393910380 is an abundant number, since it is smaller than the sum of its proper divisors (76497997204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
65393910380 is a wasteful number, since it uses less digits than its factorization.
65393910380 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 100326 (or 100324 counting only the distinct ones).
The product of its (nonzero) digits is 524880, while the sum is 47.
The spelling of 65393910380 in words is "sixty-five billion, three hundred ninety-three million, nine hundred ten thousand, three hundred eighty".
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