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434214431 = 728861519
BaseRepresentation
bin11001111000011…
…001011000011111
31010021001101012222
4121320121120133
51342124330211
6111030415555
713521522200
oct3170313037
91107041188
10434214431
11203114802
121015015bb
136bc60921
144194d5a7
15281c11db
hex19e1961f

434214431 has 6 divisors (see below), whose sum is σ = 505106640. Its totient is φ = 372183756.

The previous prime is 434214413. The next prime is 434214433. The reversal of 434214431 is 134412434.

It is not a de Polignac number, because 434214431 - 210 = 434213407 is a prime.

It is a super-2 number, since 2×4342144312 = 377084344177307522, 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 434214431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434214433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4430711 + ... + 4430808.

It is an arithmetic number, because the mean of its divisors is an integer number (84184440).

Almost surely, 2434214431 is an apocalyptic number.

434214431 is a deficient number, since it is larger than the sum of its proper divisors (70892209).

434214431 is an equidigital number, since it uses as much as digits as its factorization.

434214431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8861533 (or 8861526 counting only the distinct ones).

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

The square root of 434214431 is about 20837.8125291500. The cubic root of 434214431 is about 757.2420996444.

Adding to 434214431 its reverse (134412434), we get a palindrome (568626865).

The spelling of 434214431 in words is "four hundred thirty-four million, two hundred fourteen thousand, four hundred thirty-one".

Divisors: 1 7 49 8861519 62030633 434214431