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430220513 = 1725307089
BaseRepresentation
bin11001101001001…
…010010011100001
31002222112110121002
4121221022103201
51340114024023
6110405041345
713442546132
oct3151122341
91088473532
10430220513
11200937048
121000b6255
136b192a68
14411cdc89
1527b82b28
hex19a4a4e1

430220513 has 4 divisors (see below), whose sum is σ = 455527620. Its totient is φ = 404913408.

The previous prime is 430220473. The next prime is 430220519. The reversal of 430220513 is 315022034.

It is a happy number.

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 262699264 + 167521249 = 16208^2 + 12943^2 .

It is a cyclic number.

It is not a de Polignac number, because 430220513 - 212 = 430216417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (430220519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12653528 + ... + 12653561.

It is an arithmetic number, because the mean of its divisors is an integer number (113881905).

Almost surely, 2430220513 is an apocalyptic number.

It is an amenable number.

430220513 is a deficient number, since it is larger than the sum of its proper divisors (25307107).

430220513 is a wasteful number, since it uses less digits than its factorization.

430220513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25307106.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 430220513 is about 20741.7577124023. The cubic root of 430220513 is about 754.9132324304.

Adding to 430220513 its reverse (315022034), we get a palindrome (745242547).

The spelling of 430220513 in words is "four hundred thirty million, two hundred twenty thousand, five hundred thirteen".

Divisors: 1 17 25307089 430220513