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19054085 = 53810817
BaseRepresentation
bin100100010101…
…1111000000101
31022212001021212
41020223320011
514334212320
61520221205
7320646161
oct110537005
938761255
1019054085
11a834686
12646a805
133c41a0b
14275dca1
151a159c5
hex122be05

19054085 has 4 divisors (see below), whose sum is σ = 22864908. Its totient is φ = 15243264.

The previous prime is 19054069. The next prime is 19054151. The reversal of 19054085 is 58045091.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3189796 + 15864289 = 1786^2 + 3983^2 .

It is a cyclic number.

It is not a de Polignac number, because 19054085 - 24 = 19054069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1905404 + ... + 1905413.

It is an arithmetic number, because the mean of its divisors is an integer number (5716227).

Almost surely, 219054085 is an apocalyptic number.

It is an amenable number.

19054085 is a deficient number, since it is larger than the sum of its proper divisors (3810823).

19054085 is an equidigital number, since it uses as much as digits as its factorization.

19054085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810822.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 19054085 is about 4365.0985097704. The cubic root of 19054085 is about 267.0931188712.

The spelling of 19054085 in words is "nineteen million, fifty-four thousand, eighty-five".

Divisors: 1 5 3810817 19054085