Search a number
-
+
19303741 is a prime number
BaseRepresentation
bin100100110100…
…0110100111101
31100022201202101
41021220310331
514420204431
61525425101
7323036062
oct111506475
940281671
1019303741
11a995206
12656b191
133ccb542
1427c6c69
151a64961
hex1268d3d

19303741 has 2 divisors, whose sum is σ = 19303742. Its totient is φ = 19303740.

The previous prime is 19303733. The next prime is 19303769. The reversal of 19303741 is 14730391.

It is an a-pointer prime, because the next prime (19303769) can be obtained adding 19303741 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18887716 + 416025 = 4346^2 + 645^2 .

It is a cyclic number.

It is not a de Polignac number, because 19303741 - 23 = 19303733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19303771) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9651870 + 9651871.

It is an arithmetic number, because the mean of its divisors is an integer number (9651871).

Almost surely, 219303741 is an apocalyptic number.

It is an amenable number.

19303741 is a deficient number, since it is larger than the sum of its proper divisors (1).

19303741 is an equidigital number, since it uses as much as digits as its factorization.

19303741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 19303741 is about 4393.6022805894. The cubic root of 19303741 is about 268.2545893279.

It can be divided in two parts, 1930 and 3741, that added together give a triangular number (5671 = T106).

The spelling of 19303741 in words is "nineteen million, three hundred three thousand, seven hundred forty-one".