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34189839 = 3217223463
BaseRepresentation
bin1000001001101…
…1001000001111
32101100000122100
42002123020033
532223033324
63220450143
7563415555
oct202331017
971300570
1034189839
1118332372
12b549953
137111098
14477dbd5
1530054c9
hex209b20f

34189839 has 12 divisors (see below), whose sum is σ = 52290576. Its totient is φ = 21452352.

The previous prime is 34189789. The next prime is 34189843. The reversal of 34189839 is 93898143.

It is not a de Polignac number, because 34189839 - 27 = 34189711 is a prime.

It is a super-3 number, since 3×341898393 (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 34189794 and 34189803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34189849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111579 + ... + 111884.

It is an arithmetic number, because the mean of its divisors is an integer number (4357548).

Almost surely, 234189839 is an apocalyptic number.

34189839 is a deficient number, since it is larger than the sum of its proper divisors (18100737).

34189839 is a wasteful number, since it uses less digits than its factorization.

34189839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223486 (or 223483 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 34189839 is about 5847.2077951788. The cubic root of 34189839 is about 324.5630071630.

The spelling of 34189839 in words is "thirty-four million, one hundred eighty-nine thousand, eight hundred thirty-nine".

Divisors: 1 3 9 17 51 153 223463 670389 2011167 3798871 11396613 34189839