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19052713 = 40147513
BaseRepresentation
bin100100010101…
…1100010101001
31022211222102001
41020223202221
514334141323
61520211001
7320642161
oct110534251
938758361
1019052713
11a833649
126469a61
133c411c4
14275d5a1
151a153ad
hex122b8a9

19052713 has 4 divisors (see below), whose sum is σ = 19100628. Its totient is φ = 19004800.

The previous prime is 19052711. The next prime is 19052731. The reversal of 19052713 is 31725091.

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 13162384 + 5890329 = 3628^2 + 2427^2 .

It is a cyclic number.

It is not a de Polignac number, because 19052713 - 21 = 19052711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19052711) 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, 23356 + ... + 24157.

It is an arithmetic number, because the mean of its divisors is an integer number (4775157).

Almost surely, 219052713 is an apocalyptic number.

It is an amenable number.

19052713 is a deficient number, since it is larger than the sum of its proper divisors (47915).

19052713 is an equidigital number, since it uses as much as digits as its factorization.

19052713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47914.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 19052713 is about 4364.9413512669. The cubic root of 19052713 is about 267.0867079877.

The spelling of 19052713 in words is "nineteen million, fifty-two thousand, seven hundred thirteen".

Divisors: 1 401 47513 19052713