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434649469 = 2318897803
BaseRepresentation
bin11001111010000…
…011100101111101
31010021212110222111
4121322003211331
51342232240334
6111044014021
713525313422
oct3172034575
91107773874
10434649469
11203391641
12101691311
136c083947
1441a23d49
152825a064
hex19e8397d

434649469 has 4 divisors (see below), whose sum is σ = 453547296. Its totient is φ = 415751644.

The previous prime is 434649437. The next prime is 434649473. The reversal of 434649469 is 964946434.

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 434649469 - 25 = 434649437 is a prime.

It is a super-2 number, since 2×4346494692 = 377840321803963922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (434646469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9448879 + ... + 9448924.

It is an arithmetic number, because the mean of its divisors is an integer number (113386824).

Almost surely, 2434649469 is an apocalyptic number.

It is an amenable number.

434649469 is a deficient number, since it is larger than the sum of its proper divisors (18897827).

434649469 is a wasteful number, since it uses less digits than its factorization.

434649469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18897826.

The product of its digits is 2239488, while the sum is 49.

The square root of 434649469 is about 20848.2485835142. The cubic root of 434649469 is about 757.4949080176.

The spelling of 434649469 in words is "four hundred thirty-four million, six hundred forty-nine thousand, four hundred sixty-nine".

Divisors: 1 23 18897803 434649469