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434235243 = 31312379001
BaseRepresentation
bin11001111000011…
…110011101101011
31010021002102202210
4121320132131223
51342131011433
6111031100203
713521636651
oct3170363553
91107072683
10434235243
11203129402
12101511663
136bc6a240
1441956dd1
15281c7463
hex19e1e76b

434235243 has 16 divisors (see below), whose sum is σ = 624090656. Its totient is φ = 266976000.

The previous prime is 434235203. The next prime is 434235287. The reversal of 434235243 is 342532434.

It is a de Polignac number, because none of the positive numbers 2k-434235243 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 434235243.

It is not an unprimeable number, because it can be changed into a prime (434235203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43743 + ... + 52743.

It is an arithmetic number, because the mean of its divisors is an integer number (39005666).

Almost surely, 2434235243 is an apocalyptic number.

434235243 is a deficient number, since it is larger than the sum of its proper divisors (189855413).

434235243 is a wasteful number, since it uses less digits than its factorization.

434235243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10254.

The product of its digits is 34560, while the sum is 30.

The square root of 434235243 is about 20838.3119037987. The cubic root of 434235243 is about 757.2541977152.

Adding to 434235243 its reverse (342532434), we get a palindrome (776767677).

The spelling of 434235243 in words is "four hundred thirty-four million, two hundred thirty-five thousand, two hundred forty-three".

Divisors: 1 3 13 39 1237 3711 9001 16081 27003 48243 117013 351039 11134237 33402711 144745081 434235243