Base | Representation |
---|---|
bin | 10001101101101000101 |
3 | 1002111012002 |
4 | 2031231011 |
5 | 122033141 |
6 | 20235045 |
7 | 4635122 |
oct | 2155505 |
9 | 1074162 |
10 | 580421 |
11 | 367096 |
12 | 23ba85 |
13 | 17425a |
14 | 111749 |
15 | b6e9b |
hex | 8db45 |
580421 has 4 divisors (see below), whose sum is σ = 589152. Its totient is φ = 571692.
The previous prime is 580417. The next prime is 580471. The reversal of 580421 is 124085.
580421 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, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 580421 - 22 = 580417 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 580393 and 580402.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (580471) 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, 4265 + ... + 4398.
It is an arithmetic number, because the mean of its divisors is an integer number (147288).
2580421 is an apocalyptic number.
It is an amenable number.
580421 is a deficient number, since it is larger than the sum of its proper divisors (8731).
580421 is an equidigital number, since it uses as much as digits as its factorization.
580421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8730.
The product of its (nonzero) digits is 320, while the sum is 20.
The square root of 580421 is about 761.8536604887. The cubic root of 580421 is about 83.4156821528.
It can be divided in two parts, 580 and 421, that added together give a palindrome (1001).
The spelling of 580421 in words is "five hundred eighty thousand, four hundred twenty-one".
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