Base | Representation |
---|---|
bin | 100100011111… |
… | …0011100011111 |
3 | 1022222220121211 |
4 | 1020332130133 |
5 | 14344131033 |
6 | 1522005251 |
7 | 321414004 |
oct | 110763437 |
9 | 38886554 |
10 | 19130143 |
11 | a88683a |
12 | 64a6827 |
13 | 3c6a516 |
14 | 277d8ab |
15 | 1a2d2cd |
hex | 123e71f |
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".
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