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19130143 is a prime number
BaseRepresentation
bin100100011111…
…0011100011111
31022222220121211
41020332130133
514344131033
61522005251
7321414004
oct110763437
938886554
1019130143
11a88683a
1264a6827
133c6a516
14277d8ab
151a2d2cd
hex123e71f

19130143 has 2 divisors, whose sum is σ = 19130144. Its totient is φ = 19130142.

The previous prime is 19130123. The next prime is 19130159. The reversal of 19130143 is 34103191.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-19130143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19130123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9565071 + 9565072.

It is an arithmetic number, because the mean of its divisors is an integer number (9565072).

Almost surely, 219130143 is an apocalyptic number.

19130143 is a deficient number, since it is larger than the sum of its proper divisors (1).

19130143 is an equidigital number, since it uses as much as digits as its factorization.

19130143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 19130143 is about 4373.8018930903. The cubic root of 19130143 is about 267.4480313637.

The spelling of 19130143 in words is "nineteen million, one hundred thirty thousand, one hundred forty-three".