Base | Representation |
---|---|
bin | 101110011001000010110111… |
… | …001101100000011011010101 |
3 | 222202102012012011000011022112 |
4 | 232121002313031200123111 |
5 | 203220321344222403110 |
6 | 2001534350040040405 |
7 | 60655524225541214 |
oct | 5631026715403325 |
9 | 882365164004275 |
10 | 204031200200405 |
11 | 5a013167481306 |
12 | 1aa72744163105 |
13 | 89b00a0cb4156 |
14 | 385523c95107b |
15 | 188c4be1ed405 |
hex | b990b73606d5 |
204031200200405 has 4 divisors (see below), whose sum is σ = 244837440240492. Its totient is φ = 163224960160320.
The previous prime is 204031200200393. The next prime is 204031200200407. The reversal of 204031200200405 is 504002002130402.
It is a happy number.
204031200200405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 43294597098769 + 160736603101636 = 6579863^2 + 12678194^2 .
It is not a de Polignac number, because 204031200200405 - 212 = 204031200196309 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (204031200200407) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20403120020036 + ... + 20403120020045.
It is an arithmetic number, because the mean of its divisors is an integer number (61209360060123).
Almost surely, 2204031200200405 is an apocalyptic number.
It is an amenable number.
204031200200405 is a deficient number, since it is larger than the sum of its proper divisors (40806240040087).
204031200200405 is an equidigital number, since it uses as much as digits as its factorization.
204031200200405 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40806240040086.
The product of its (nonzero) digits is 1920, while the sum is 23.
Adding to 204031200200405 its reverse (504002002130402), we get a palindrome (708033202330807).
The spelling of 204031200200405 in words is "two hundred four trillion, thirty-one billion, two hundred million, two hundred thousand, four hundred five".
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