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34458521 = 291711813
BaseRepresentation
bin1000001101110…
…0101110011001
32101211200012112
42003130232121
532310133041
63230322105
7565615106
oct203345631
971750175
1034458521
11184a6219
12b659335
1371a6476
14480daad
153059deb
hex20dcb99

34458521 has 4 divisors (see below), whose sum is σ = 34473252. Its totient is φ = 34443792.

The previous prime is 34458511. The next prime is 34458539. The reversal of 34458521 is 12585443.

34458521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12585443 = 13968111.

It can be written as a sum of positive squares in 2 ways, for example, as 27510025 + 6948496 = 5245^2 + 2636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34458521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34458511) 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 3 ways as a sum of consecutive naturals, for example, 2990 + ... + 8823.

It is an arithmetic number, because the mean of its divisors is an integer number (8618313).

Almost surely, 234458521 is an apocalyptic number.

It is an amenable number.

34458521 is a deficient number, since it is larger than the sum of its proper divisors (14731).

34458521 is a wasteful number, since it uses less digits than its factorization.

34458521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14730.

The product of its digits is 19200, while the sum is 32.

The square root of 34458521 is about 5870.1380733335. The cubic root of 34458521 is about 325.4109861734.

The spelling of 34458521 in words is "thirty-four million, four hundred fifty-eight thousand, five hundred twenty-one".

Divisors: 1 2917 11813 34458521