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19130471 is a prime number
BaseRepresentation
bin100100011111…
…0100001100111
31022222221001222
41020332201213
514344133341
61522010555
7321414653
oct110764147
938887058
1019130471
11a887008
1264a6a5b
133c6a709
14277da63
151a2d44b
hex123e867

19130471 has 2 divisors, whose sum is σ = 19130472. Its totient is φ = 19130470.

The previous prime is 19130407. The next prime is 19130483. The reversal of 19130471 is 17403191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19130471 - 26 = 19130407 is a prime.

It is a super-3 number, since 3×191304713 (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19130471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19130171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9565235 + 9565236.

It is an arithmetic number, because the mean of its divisors is an integer number (9565236).

Almost surely, 219130471 is an apocalyptic number.

19130471 is a deficient number, since it is larger than the sum of its proper divisors (1).

19130471 is an equidigital number, since it uses as much as digits as its factorization.

19130471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 19130471 is about 4373.8393889122. The cubic root of 19130471 is about 267.4495598843.

The spelling of 19130471 in words is "nineteen million, one hundred thirty thousand, four hundred seventy-one".