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34405430 = 253440543
BaseRepresentation
bin1000001100111…
…1110000110110
32101201222101012
42003033300312
532301433210
63225232222
7565304243
oct203176066
971658335
1034405430
111846a344
12b632672
137188257
1447d85ca
153049305
hex20cfc36

34405430 has 8 divisors (see below), whose sum is σ = 61929792. Its totient is φ = 13762168.

The previous prime is 34405429. The next prime is 34405439. The reversal of 34405430 is 3450443.

It is a happy number.

34405430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×344054302 = 2367467226969800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 34405396 and 34405405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34405439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1720262 + ... + 1720281.

It is an arithmetic number, because the mean of its divisors is an integer number (7741224).

Almost surely, 234405430 is an apocalyptic number.

34405430 is a deficient number, since it is larger than the sum of its proper divisors (27524362).

34405430 is a wasteful number, since it uses less digits than its factorization.

34405430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440550.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 34405430 is about 5865.6142048382. The cubic root of 34405430 is about 325.2437776526.

Adding to 34405430 its reverse (3450443), we get a palindrome (37855873).

The spelling of 34405430 in words is "thirty-four million, four hundred five thousand, four hundred thirty".

Divisors: 1 2 5 10 3440543 6881086 17202715 34405430