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16020011 = 72326939
BaseRepresentation
bin111101000111…
…001000101011
31010010220022202
4331013020223
513100120021
61331210415
7253111400
oct75071053
933126282
1016020011
119052087
125446a0b
13341b9c7
1421b02a7
151616a0b
hexf4722b

16020011 has 6 divisors (see below), whose sum is σ = 18635580. Its totient is φ = 13731396.

The previous prime is 16020007. The next prime is 16020023. The reversal of 16020011 is 11002061.

It is not a de Polignac number, because 16020011 - 22 = 16020007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16019974 and 16020001.

It is not an unprimeable number, because it can be changed into a prime (16020031) 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 5 ways as a sum of consecutive naturals, for example, 163421 + ... + 163518.

It is an arithmetic number, because the mean of its divisors is an integer number (3105930).

Almost surely, 216020011 is an apocalyptic number.

16020011 is a deficient number, since it is larger than the sum of its proper divisors (2615569).

16020011 is an equidigital number, since it uses as much as digits as its factorization.

16020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326953 (or 326946 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 16020011 is about 4002.5005933791. The cubic root of 16020011 is about 252.0892173812.

Adding to 16020011 its reverse (11002061), we get a palindrome (27022072).

The spelling of 16020011 in words is "sixteen million, twenty thousand, eleven".

Divisors: 1 7 49 326939 2288573 16020011