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34243013 = 721375101
BaseRepresentation
bin1000001010100…
…0000111000101
32101102201120202
42002220013011
532231234023
63221540245
7564026600
oct202500705
971381522
1034243013
1118369312
12b574685
13712c34c
144795337
153016128
hex20a81c5

34243013 has 12 divisors (see below), whose sum is σ = 40132332. Its totient is φ = 29131200.

The previous prime is 34243009. The next prime is 34243051. The reversal of 34243013 is 31034243.

It can be written as a sum of positive squares in 2 ways, for example, as 6385729 + 27857284 = 2527^2 + 5278^2 .

It is not a de Polignac number, because 34243013 - 22 = 34243009 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 (34243063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4163 + ... + 9263.

It is an arithmetic number, because the mean of its divisors is an integer number (3344361).

Almost surely, 234243013 is an apocalyptic number.

It is an amenable number.

34243013 is a deficient number, since it is larger than the sum of its proper divisors (5889319).

34243013 is a wasteful number, since it uses less digits than its factorization.

34243013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5252 (or 5245 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 34243013 is about 5851.7529852173. The cubic root of 34243013 is about 324.7311796818.

Adding to 34243013 its reverse (31034243), we get a palindrome (65277256).

The spelling of 34243013 in words is "thirty-four million, two hundred forty-three thousand, thirteen".

Divisors: 1 7 49 137 959 5101 6713 35707 249949 698837 4891859 34243013