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20030411 is a prime number
BaseRepresentation
bin100110001101…
…0001111001011
31101200122120002
41030122033023
520111433121
61553153215
7332153462
oct114321713
941618502
1020030411
1110341165
12685b80b
1341c421b
1429359d9
151b59e0b
hex131a3cb

20030411 has 2 divisors, whose sum is σ = 20030412. Its totient is φ = 20030410.

The previous prime is 20030407. The next prime is 20030443. The reversal of 20030411 is 11403002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20030411 - 22 = 20030407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20030392 and 20030401.

It is not a weakly prime, because it can be changed into another prime (20030011) 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, 10015205 + 10015206.

It is an arithmetic number, because the mean of its divisors is an integer number (10015206).

Almost surely, 220030411 is an apocalyptic number.

20030411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20030411 is an equidigital number, since it uses as much as digits as its factorization.

20030411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20030411 is about 4475.5347166568. The cubic root of 20030411 is about 271.5792722427.

Adding to 20030411 its reverse (11403002), we get a palindrome (31433413).

The spelling of 20030411 in words is "twenty million, thirty thousand, four hundred eleven".