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19426085 = 572919139
BaseRepresentation
bin100101000011…
…0101100100101
31100112221120122
41022012230211
514433113320
61532211325
7324055550
oct112065445
940487518
1019426085
11aa69118
126609b45
134042133
142819697
151a8ad25
hex1286b25

19426085 has 16 divisors (see below), whose sum is σ = 27561600. Its totient is φ = 12860736.

The previous prime is 19426061. The next prime is 19426111. The reversal of 19426085 is 58062491.

It is not a de Polignac number, because 19426085 - 28 = 19425829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 8555 + ... + 10584.

It is an arithmetic number, because the mean of its divisors is an integer number (1722600).

Almost surely, 219426085 is an apocalyptic number.

It is an amenable number.

19426085 is a deficient number, since it is larger than the sum of its proper divisors (8135515).

19426085 is a wasteful number, since it uses less digits than its factorization.

19426085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19180.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 19426085 is about 4407.5032614849. The cubic root of 19426085 is about 268.8201143905.

The spelling of 19426085 in words is "nineteen million, four hundred twenty-six thousand, eighty-five".

Divisors: 1 5 7 29 35 145 203 1015 19139 95695 133973 555031 669865 2775155 3885217 19426085