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16422085 = 517193201
BaseRepresentation
bin111110101001…
…010011000101
31010220022212101
4332221103011
513201001320
61343552101
7256404541
oct76512305
933808771
1016422085
1192a7179
1255bb631
13352ca14
142276a21
151695c0a
hexfa94c5

16422085 has 8 divisors (see below), whose sum is σ = 20865816. Its totient is φ = 12364800.

The previous prime is 16422083. The next prime is 16422089. The reversal of 16422085 is 58022461.

It can be written as a sum of positive squares in 4 ways, for example, as 2982529 + 13439556 = 1727^2 + 3666^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16422085 - 21 = 16422083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16422083) 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 7 ways as a sum of consecutive naturals, for example, 96516 + ... + 96685.

It is an arithmetic number, because the mean of its divisors is an integer number (2608227).

Almost surely, 216422085 is an apocalyptic number.

It is an amenable number.

16422085 is a deficient number, since it is larger than the sum of its proper divisors (4443731).

16422085 is a wasteful number, since it uses less digits than its factorization.

16422085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193223.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 16422085 is about 4052.4171799063. The cubic root of 16422085 is about 254.1808134501.

The spelling of 16422085 in words is "sixteen million, four hundred twenty-two thousand, eighty-five".

Divisors: 1 5 17 85 193201 966005 3284417 16422085