Base | Representation |
---|---|
bin | 1011000100100010000… |
… | …10010101011101100101 |
3 | 1100100212001201000210101 |
4 | 11202101002111131211 |
5 | 22213014422234230 |
6 | 450425435024101 |
7 | 36324300211435 |
oct | 5422102253545 |
9 | 1310761630711 |
10 | 380390430565 |
11 | 137360532672 |
12 | 6187bb9b031 |
13 | 29b41b04412 |
14 | 145a7ab02c5 |
15 | 9d650a0aca |
hex | 5891095765 |
380390430565 has 8 divisors (see below), whose sum is σ = 457606844568. Its totient is φ = 303553459200.
The previous prime is 380390430521. The next prime is 380390430593. The reversal of 380390430565 is 565034093083.
It is a Cunningham number, because it is equal to 6167582+1.
It can be written as a sum of positive squares in 4 ways, for example, as 136939962916 + 243450467649 = 370054^2 + 493407^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 380390430565 - 235 = 346030692197 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94858452 + ... + 94862461.
It is an arithmetic number, because the mean of its divisors is an integer number (57200855571).
Almost surely, 2380390430565 is an apocalyptic number.
It is an amenable number.
380390430565 is a deficient number, since it is larger than the sum of its proper divisors (77216414003).
380390430565 is a wasteful number, since it uses less digits than its factorization.
380390430565 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 189721319.
The product of its (nonzero) digits is 1166400, while the sum is 46.
The spelling of 380390430565 in words is "three hundred eighty billion, three hundred ninety million, four hundred thirty thousand, five hundred sixty-five".
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