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434489 = 1139499
BaseRepresentation
bin1101010000100111001
3211002000012
41222010321
5102400424
613151305
73456506
oct1520471
9732005
10434489
11277490
1218b535
131229c3
14b44ad
1588b0e
hex6a139

434489 has 4 divisors (see below), whose sum is σ = 474000. Its totient is φ = 394980.

The previous prime is 434479. The next prime is 434501. The reversal of 434489 is 984434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 434489 - 212 = 430393 is a prime.

It is a super-2 number, since 2×4344892 = 377561382242, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 434489.

It is not an unprimeable number, because it can be changed into a prime (434459) 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, 19739 + ... + 19760.

It is an arithmetic number, because the mean of its divisors is an integer number (118500).

2434489 is an apocalyptic number.

It is an amenable number.

434489 is a deficient number, since it is larger than the sum of its proper divisors (39511).

434489 is a wasteful number, since it uses less digits than its factorization.

434489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39510.

The product of its digits is 13824, while the sum is 32.

The square root of 434489 is about 659.1577959791. The cubic root of 434489 is about 75.7401676252.

Subtracting 434489 from its reverse (984434), we obtain a palindrome (549945).

It can be divided in two parts, 434 and 489, that multiplied together give a triangular number (212226 = T651).

The spelling of 434489 in words is "four hundred thirty-four thousand, four hundred eighty-nine".

Divisors: 1 11 39499 434489