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19019053 = 103184651
BaseRepresentation
bin100100010001…
…1010100101101
31022210021020101
41020203110231
514332102203
61515351101
7320442064
oct110432455
938707211
1019019053
11a810329
126452491
133c2baa1
1427511db
151a0a41d
hex122352d

19019053 has 4 divisors (see below), whose sum is σ = 19203808. Its totient is φ = 18834300.

The previous prime is 19019017. The next prime is 19019069. The reversal of 19019053 is 35091091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19019053 - 29 = 19018541 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 (19019093) by changing a digit.

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, 92223 + ... + 92428.

It is an arithmetic number, because the mean of its divisors is an integer number (4800952).

Almost surely, 219019053 is an apocalyptic number.

It is an amenable number.

19019053 is a deficient number, since it is larger than the sum of its proper divisors (184755).

19019053 is a wasteful number, since it uses less digits than its factorization.

19019053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184754.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 19019053 is about 4361.0839248976. The cubic root of 19019053 is about 266.9293299104.

The spelling of 19019053 in words is "nineteen million, nineteen thousand, fifty-three".

Divisors: 1 103 184651 19019053