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16305241 = 26216221
BaseRepresentation
bin111110001100…
…110001011001
31010200101120211
4332030301121
513133231431
61341251121
7255410101
oct76146131
933611524
1016305241
119227407
125563aa1
1334bb794
142246201
1516712b1
hexf8cc59

16305241 has 4 divisors (see below), whose sum is σ = 16314084. Its totient is φ = 16296400.

The previous prime is 16305217. The next prime is 16305251. The reversal of 16305241 is 14250361.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14250361 = 19750019.

It can be written as a sum of positive squares in 2 ways, for example, as 6250000 + 10055241 = 2500^2 + 3171^2 .

It is a cyclic number.

It is not a de Polignac number, because 16305241 - 211 = 16303193 is a prime.

It is a super-3 number, since 3×163052413 (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16305251) 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, 490 + ... + 5731.

It is an arithmetic number, because the mean of its divisors is an integer number (4078521).

Almost surely, 216305241 is an apocalyptic number.

It is an amenable number.

16305241 is a deficient number, since it is larger than the sum of its proper divisors (8843).

16305241 is an equidigital number, since it uses as much as digits as its factorization.

16305241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8842.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 16305241 is about 4037.9748637157. The cubic root of 16305241 is about 253.5765414070.

The spelling of 16305241 in words is "sixteen million, three hundred five thousand, two hundred forty-one".

Divisors: 1 2621 6221 16305241