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34842989 = 41849829
BaseRepresentation
bin1000010011101…
…0100101101101
32102120012121002
42010322211231
532404433424
63242450045
7602106026
oct204724555
972505532
1034842989
1118739065
12b803925
1372ac46c
1448adc4d
1530d3cae
hex213a96d

34842989 has 4 divisors (see below), whose sum is σ = 35692860. Its totient is φ = 33993120.

The previous prime is 34842931. The next prime is 34843009. The reversal of 34842989 is 98924843.

34842989 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 714025 + 34128964 = 845^2 + 5842^2 .

It is a cyclic number.

It is not a de Polignac number, because 34842989 - 28 = 34842733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34842289) 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, 424874 + ... + 424955.

It is an arithmetic number, because the mean of its divisors is an integer number (8923215).

Almost surely, 234842989 is an apocalyptic number.

It is an amenable number.

34842989 is a deficient number, since it is larger than the sum of its proper divisors (849871).

34842989 is an equidigital number, since it uses as much as digits as its factorization.

34842989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849870.

The product of its digits is 497664, while the sum is 47.

The square root of 34842989 is about 5902.7950159225. The cubic root of 34842989 is about 326.6167611994.

The spelling of 34842989 in words is "thirty-four million, eight hundred forty-two thousand, nine hundred eighty-nine".

Divisors: 1 41 849829 34842989