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424314431 = 2663159337
BaseRepresentation
bin11001010010101…
…000011000111111
31002120102101222022
4121102220120333
51332111030211
6110034310355
713341420212
oct3122503077
91076371868
10424314431
111a8572792
12ba1283bb
1369ba5738
14404d3779
15273b7bdb
hex194a863f

424314431 has 4 divisors (see below), whose sum is σ = 424476432. Its totient is φ = 424152432.

The previous prime is 424314349. The next prime is 424314439. The reversal of 424314431 is 134413424.

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-424314431 is a prime.

It is a super-2 number, since 2×4243144312 = 360085472709707522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 424314431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424314439) 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, 77006 + ... + 82331.

It is an arithmetic number, because the mean of its divisors is an integer number (106119108).

Almost surely, 2424314431 is an apocalyptic number.

424314431 is a deficient number, since it is larger than the sum of its proper divisors (162001).

424314431 is a wasteful number, since it uses less digits than its factorization.

424314431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162000.

The product of its digits is 4608, while the sum is 26.

The square root of 424314431 is about 20598.8939266165. The cubic root of 424314431 is about 751.4428113547.

Adding to 424314431 its reverse (134413424), we get a palindrome (558727855).

The spelling of 424314431 in words is "four hundred twenty-four million, three hundred fourteen thousand, four hundred thirty-one".

Divisors: 1 2663 159337 424314431