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14309513 = 137149701
BaseRepresentation
bin110110100101…
…100010001001
3222220222221222
4312211202021
512130401023
61230411425
7232425461
oct66454211
928828858
1014309513
118093a49
124960b75
132c7028a
141c86ba1
1513c9cc8
hexda5889

14309513 has 8 divisors (see below), whose sum is σ = 14531400. Its totient is φ = 14089600.

The previous prime is 14309459. The next prime is 14309539. The reversal of 14309513 is 31590341.

It can be written as a sum of positive squares in 4 ways, for example, as 2393209 + 11916304 = 1547^2 + 3452^2 .

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 14309513 - 214 = 14293129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14309593) 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 7 ways as a sum of consecutive naturals, for example, 20063 + ... + 20763.

It is an arithmetic number, because the mean of its divisors is an integer number (1816425).

Almost surely, 214309513 is an apocalyptic number.

It is an amenable number.

14309513 is a deficient number, since it is larger than the sum of its proper divisors (221887).

14309513 is a wasteful number, since it uses less digits than its factorization.

14309513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 14309513 is about 3782.7916939742. The cubic root of 14309513 is about 242.7774158957. Note that the first 3 decimals are identical.

Adding to 14309513 its reverse (31590341), we get a palindrome (45899854).

The spelling of 14309513 in words is "fourteen million, three hundred nine thousand, five hundred thirteen".

Divisors: 1 137 149 701 20413 96037 104449 14309513