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34251443 = 181118913
BaseRepresentation
bin1000001010101…
…0001010110011
32101110011010222
42002222022303
532232021233
63222043255
7564063302
oct202521263
971404128
1034251443
1118374686
12b57952b
137133135
144798439
153018898
hex20aa2b3

34251443 has 4 divisors (see below), whose sum is σ = 34272168. Its totient is φ = 34230720.

The previous prime is 34251421. The next prime is 34251473. The reversal of 34251443 is 34415243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34415243 = 227151609.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34251443 is a prime.

It is a super-2 number, since 2×342514432 = 2346322695164498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34251403) 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 3 ways as a sum of consecutive naturals, for example, 7646 + ... + 11267.

It is an arithmetic number, because the mean of its divisors is an integer number (8568042).

Almost surely, 234251443 is an apocalyptic number.

34251443 is a deficient number, since it is larger than the sum of its proper divisors (20725).

34251443 is a wasteful number, since it uses less digits than its factorization.

34251443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20724.

The product of its digits is 5760, while the sum is 26.

The square root of 34251443 is about 5852.4732378713. The cubic root of 34251443 is about 324.7578251100.

Adding to 34251443 its reverse (34415243), we get a palindrome (68666686).

The spelling of 34251443 in words is "thirty-four million, two hundred fifty-one thousand, four hundred forty-three".

Divisors: 1 1811 18913 34251443