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34345423 = 721741231
BaseRepresentation
bin1000001100000…
…1000111001111
32101121221001201
42003001013033
532243023143
63224050331
7564634300
oct203010717
971557051
1034345423
1118429252
12b6039a7
137166b48
1447c07a7
15303664d
hex20c11cf

34345423 has 12 divisors (see below), whose sum is σ = 42304032. Its totient is φ = 27706560.

The previous prime is 34345411. The next prime is 34345447. The reversal of 34345423 is 32454343.

It is not a de Polignac number, because 34345423 - 225 = 790991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34345391 and 34345400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34343423) 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, 19783 + ... + 21448.

It is an arithmetic number, because the mean of its divisors is an integer number (3525336).

Almost surely, 234345423 is an apocalyptic number.

34345423 is a deficient number, since it is larger than the sum of its proper divisors (7958609).

34345423 is a wasteful number, since it uses less digits than its factorization.

34345423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41262 (or 41255 counting only the distinct ones).

The product of its digits is 17280, while the sum is 28.

The square root of 34345423 is about 5860.4968219427. The cubic root of 34345423 is about 325.0545801825.

Adding to 34345423 its reverse (32454343), we get a palindrome (66799766).

The spelling of 34345423 in words is "thirty-four million, three hundred forty-five thousand, four hundred twenty-three".

Divisors: 1 7 17 49 119 833 41231 288617 700927 2020319 4906489 34345423