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34421639 = 723213799
BaseRepresentation
bin1000001101001…
…1101110000111
32101202210121112
42003103232013
532302443024
63225435235
7565402430
oct203235607
971683545
1034421639
111848053a
12b63bb1b
137192745
144800487
15304e00e
hex20d3b87

34421639 has 8 divisors (see below), whose sum is σ = 41049600. Its totient is φ = 28221336.

The previous prime is 34421623. The next prime is 34421641. The reversal of 34421639 is 93612443.

34421639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 34421639 - 24 = 34421623 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 (34421609) 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 7 ways as a sum of consecutive naturals, for example, 106739 + ... + 107060.

It is an arithmetic number, because the mean of its divisors is an integer number (5131200).

Almost surely, 234421639 is an apocalyptic number.

34421639 is a deficient number, since it is larger than the sum of its proper divisors (6627961).

34421639 is a wasteful number, since it uses less digits than its factorization.

34421639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213829.

The product of its digits is 15552, while the sum is 32.

The square root of 34421639 is about 5866.9957388769. The cubic root of 34421639 is about 325.2948456450.

The spelling of 34421639 in words is "thirty-four million, four hundred twenty-one thousand, six hundred thirty-nine".

Divisors: 1 7 23 161 213799 1496593 4917377 34421639