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4230431 = 4639137
BaseRepresentation
bin10000001000110100011111
321221221001122
4100020310133
52040333211
6230401155
750646422
oct20106437
97857048
104230431
11242a427
1215001bb
13b5171a
147c19b9
155886db
hex408d1f

4230431 has 4 divisors (see below), whose sum is σ = 4240032. Its totient is φ = 4220832.

The previous prime is 4230419. The next prime is 4230451. The reversal of 4230431 is 1340324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4230431 is a prime.

It is a super-2 number, since 2×42304312 = 35793092891522, which contains 22 as substring.

It is a d-powerful number, because it can be written as 47 + 25 + 33 + 0 + 411 + 39 + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4230451) 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, 4106 + ... + 5031.

It is an arithmetic number, because the mean of its divisors is an integer number (1060008).

Almost surely, 24230431 is an apocalyptic number.

4230431 is a deficient number, since it is larger than the sum of its proper divisors (9601).

4230431 is an equidigital number, since it uses as much as digits as its factorization.

4230431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9600.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 4230431 is about 2056.8011571370. The cubic root of 4230431 is about 161.7315958889.

Adding to 4230431 its reverse (1340324), we get a palindrome (5570755).

The spelling of 4230431 in words is "four million, two hundred thirty thousand, four hundred thirty-one".

Divisors: 1 463 9137 4230431