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34189421 = 76477549
BaseRepresentation
bin1000001001101…
…1000001101101
32101100000001212
42002123001231
532223030141
63220444205
7563414420
oct202330155
971300055
1034189421
1118332022
12b549665
137110b36
14477d9b7
1530052eb
hex209b06d

34189421 has 8 divisors (see below), whose sum is σ = 39139200. Its totient is φ = 29256048.

The previous prime is 34189403. The next prime is 34189423. The reversal of 34189421 is 12498143.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 34189421 - 222 = 29995117 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 (34189423) 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 7 ways as a sum of consecutive naturals, for example, 755 + ... + 8303.

It is an arithmetic number, because the mean of its divisors is an integer number (4892400).

Almost surely, 234189421 is an apocalyptic number.

It is an amenable number.

34189421 is a deficient number, since it is larger than the sum of its proper divisors (4949779).

34189421 is an equidigital number, since it uses as much as digits as its factorization.

34189421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8203.

The product of its digits is 6912, while the sum is 32.

The square root of 34189421 is about 5847.1720515134. The cubic root of 34189421 is about 324.5616844709.

The spelling of 34189421 in words is "thirty-four million, one hundred eighty-nine thousand, four hundred twenty-one".

Divisors: 1 7 647 4529 7549 52843 4884203 34189421