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19244885 = 511349907
BaseRepresentation
bin100100101101…
…0011101010101
31100012202000112
41021122131111
514411314020
61524252405
7322402352
oct111323525
940182015
1019244885
11a954a70
126541105
133caa80a
1427ad629
151a522c5
hex125a755

19244885 has 8 divisors (see below), whose sum is σ = 25193376. Its totient is φ = 13996240.

The previous prime is 19244873. The next prime is 19244887. The reversal of 19244885 is 58844291.

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

It is not a de Polignac number, because 19244885 - 26 = 19244821 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 (19244887) 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, 174899 + ... + 175008.

It is an arithmetic number, because the mean of its divisors is an integer number (3149172).

Almost surely, 219244885 is an apocalyptic number.

It is an amenable number.

19244885 is a deficient number, since it is larger than the sum of its proper divisors (5948491).

19244885 is a wasteful number, since it uses less digits than its factorization.

19244885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349923.

The product of its digits is 92160, while the sum is 41.

The square root of 19244885 is about 4386.8992466206. The cubic root of 19244885 is about 267.9816808225.

The spelling of 19244885 in words is "nineteen million, two hundred forty-four thousand, eight hundred eighty-five".

Divisors: 1 5 11 55 349907 1749535 3848977 19244885