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34860809 = 44977641
BaseRepresentation
bin1000010011111…
…0111100001001
32102121010001002
42010332330021
532411021214
63243104345
7602212004
oct204767411
972533032
1034860809
1118750495
12b8120b5
1372b75c9
1448b653b
1530d91de
hex213ef09

34860809 has 4 divisors (see below), whose sum is σ = 34938900. Its totient is φ = 34782720.

The previous prime is 34860773. The next prime is 34860811. The reversal of 34860809 is 90806843.

34860809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10259209 + 24601600 = 3203^2 + 4960^2 .

It is a cyclic number.

It is not a de Polignac number, because 34860809 - 212 = 34856713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34860869) 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, 38372 + ... + 39269.

It is an arithmetic number, because the mean of its divisors is an integer number (8734725).

Almost surely, 234860809 is an apocalyptic number.

It is an amenable number.

34860809 is a deficient number, since it is larger than the sum of its proper divisors (78091).

34860809 is an equidigital number, since it uses as much as digits as its factorization.

34860809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78090.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 34860809 is about 5904.3042773895. The cubic root of 34860809 is about 326.6724330279.

The spelling of 34860809 in words is "thirty-four million, eight hundred sixty thousand, eight hundred nine".

Divisors: 1 449 77641 34860809