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16380335 = 53276067
BaseRepresentation
bin111110011111…
…000110101111
31010211012121002
4332133012233
513143132320
61343030515
7256142036
oct76370657
933735532
1016380335
119278874
12559b43b
133516a0a
14226571d
151688675
hexf9f1af

16380335 has 4 divisors (see below), whose sum is σ = 19656408. Its totient is φ = 13104264.

The previous prime is 16380317. The next prime is 16380349. The reversal of 16380335 is 53308361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53308361 = 491108571.

It is a cyclic number.

It is not a de Polignac number, because 16380335 - 218 = 16118191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16380298 and 16380307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1638029 + ... + 1638038.

It is an arithmetic number, because the mean of its divisors is an integer number (4914102).

Almost surely, 216380335 is an apocalyptic number.

16380335 is a deficient number, since it is larger than the sum of its proper divisors (3276073).

16380335 is an equidigital number, since it uses as much as digits as its factorization.

16380335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276072.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 16380335 is about 4047.2626551782. The cubic root of 16380335 is about 253.9652286707.

Adding to 16380335 its reverse (53308361), we get a palindrome (69688696).

The spelling of 16380335 in words is "sixteen million, three hundred eighty thousand, three hundred thirty-five".

Divisors: 1 5 3276067 16380335