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605230421 = 4712877243
BaseRepresentation
bin100100000100110…
…001010101010101
31120011211220001112
4210010301111111
52214414333141
6140020104405
720666242115
oct4404612525
91504756045
10605230421
11290700634
1214a835105
139850a513
145a549045
15382027eb
hex24131555

605230421 has 4 divisors (see below), whose sum is σ = 618107712. Its totient is φ = 592353132.

The previous prime is 605230411. The next prime is 605230463. The reversal of 605230421 is 124032506.

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 605230421 - 26 = 605230357 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 (605230411) 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, 6438575 + ... + 6438668.

It is an arithmetic number, because the mean of its divisors is an integer number (154526928).

Almost surely, 2605230421 is an apocalyptic number.

It is an amenable number.

605230421 is a deficient number, since it is larger than the sum of its proper divisors (12877291).

605230421 is a wasteful number, since it uses less digits than its factorization.

605230421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12877290.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 605230421 is about 24601.4312795008. The cubic root of 605230421 is about 845.8764157100.

Adding to 605230421 its reverse (124032506), we get a palindrome (729262927).

The spelling of 605230421 in words is "six hundred five million, two hundred thirty thousand, four hundred twenty-one".

Divisors: 1 47 12877243 605230421