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34318409 = 203916831
BaseRepresentation
bin1000001011101…
…0100001001001
32101120120000012
42002322201021
532241142114
63223321305
7564462446
oct202724111
971516005
1034318409
111840aa24
12b5b0235
137157768
1447b49cd
15302d63e
hex20ba849

34318409 has 4 divisors (see below), whose sum is σ = 34337280. Its totient is φ = 34299540.

The previous prime is 34318399. The next prime is 34318423. The reversal of 34318409 is 90481343.

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 a de Polignac number, because none of the positive numbers 2k-34318409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34318909) 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, 6377 + ... + 10454.

It is an arithmetic number, because the mean of its divisors is an integer number (8584320).

Almost surely, 234318409 is an apocalyptic number.

It is an amenable number.

34318409 is a deficient number, since it is larger than the sum of its proper divisors (18871).

34318409 is a wasteful number, since it uses less digits than its factorization.

34318409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18870.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 34318409 is about 5858.1916151659. The cubic root of 34318409 is about 324.9693351738.

The spelling of 34318409 in words is "thirty-four million, three hundred eighteen thousand, four hundred nine".

Divisors: 1 2039 16831 34318409