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430242431 = 1792403589
BaseRepresentation
bin11001101001001…
…111101001111111
31002222120120122212
4121221033221333
51340120224211
6110405331035
713443000053
oct3151175177
91088516585
10430242431
11200951563
12100106a7b
136b19ca28
14411d7c63
1527b8938b
hex19a4fa7f

430242431 has 4 divisors (see below), whose sum is σ = 432646200. Its totient is φ = 427838664.

The previous prime is 430242419. The next prime is 430242451. The reversal of 430242431 is 134242034.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 430242431 - 26 = 430242367 is a prime.

It is a super-2 number, since 2×4302424312 = 370217098865579522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 430242397 and 430242406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430242451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1201616 + ... + 1201973.

It is an arithmetic number, because the mean of its divisors is an integer number (108161550).

Almost surely, 2430242431 is an apocalyptic number.

430242431 is a deficient number, since it is larger than the sum of its proper divisors (2403769).

430242431 is a wasteful number, since it uses less digits than its factorization.

430242431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403768.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 430242431 is about 20742.2860601237. The cubic root of 430242431 is about 754.9260521408.

Adding to 430242431 its reverse (134242034), we get a palindrome (564484465).

The spelling of 430242431 in words is "four hundred thirty million, two hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 179 2403589 430242431