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19316245 = 513436911
BaseRepresentation
bin100100110101…
…1111000010101
31100100100220111
41021223320111
514421104440
61530003021
7323120404
oct111537025
940310814
1019316245
11a9a3643
126576471
134004140
1427cb63b
151a684ea
hex126be15

19316245 has 16 divisors (see below), whose sum is σ = 25546752. Its totient is φ = 13930560.

The previous prime is 19316237. The next prime is 19316261. The reversal of 19316245 is 54261391.

It is not a de Polignac number, because 19316245 - 23 = 19316237 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661 + ... + 6250.

It is an arithmetic number, because the mean of its divisors is an integer number (1596672).

Almost surely, 219316245 is an apocalyptic number.

It is an amenable number.

19316245 is a deficient number, since it is larger than the sum of its proper divisors (6230507).

19316245 is a wasteful number, since it uses less digits than its factorization.

19316245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6972.

The product of its digits is 6480, while the sum is 31.

The square root of 19316245 is about 4395.0250283701. The cubic root of 19316245 is about 268.3124974713.

The spelling of 19316245 in words is "nineteen million, three hundred sixteen thousand, two hundred forty-five".

Divisors: 1 5 13 43 65 215 559 2795 6911 34555 89843 297173 449215 1485865 3863249 19316245