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16772011 = 61274951
BaseRepresentation
bin111111111110…
…101110101011
31011120002212121
4333332232223
513243201021
61355252111
7262362664
oct77765653
934502777
1016772011
119516073
12574a037
133623089
14232836b
151714741
hexffebab

16772011 has 4 divisors (see below), whose sum is σ = 17047024. Its totient is φ = 16497000.

The previous prime is 16771999. The next prime is 16772027. The reversal of 16772011 is 11027761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11027761 = 38928349.

It is a cyclic number.

It is not a de Polignac number, because 16772011 - 27 = 16771883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16772051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137415 + ... + 137536.

It is an arithmetic number, because the mean of its divisors is an integer number (4261756).

Almost surely, 216772011 is an apocalyptic number.

16772011 is a deficient number, since it is larger than the sum of its proper divisors (275013).

16772011 is an equidigital number, since it uses as much as digits as its factorization.

16772011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275012.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 16772011 is about 4095.3645747357. The cubic root of 16772011 is about 255.9735232627.

Adding to 16772011 its reverse (11027761), we get a palindrome (27799772).

The spelling of 16772011 in words is "sixteen million, seven hundred seventy-two thousand, eleven".

Divisors: 1 61 274951 16772011