Search a number
-
+
30000319 is a prime number
BaseRepresentation
bin111001001110…
…0010010111111
32002110011200221
41302130102333
530140002234
62551002211
7512666326
oct162342277
962404627
1030000319
1115a30758
12a069367
1362a518b
143dad0bd
152978eb4
hex1c9c4bf

30000319 has 2 divisors, whose sum is σ = 30000320. Its totient is φ = 30000318.

The previous prime is 30000317. The next prime is 30000323. The reversal of 30000319 is 91300003.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (91300003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30000319 - 21 = 30000317 is a prime.

It is a super-2 number, since 2×300003192 = 1800038280203522, which contains 22 as substring.

Together with 30000317, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30000317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000159 + 15000160.

It is an arithmetic number, because the mean of its divisors is an integer number (15000160).

Almost surely, 230000319 is an apocalyptic number.

30000319 is a deficient number, since it is larger than the sum of its proper divisors (1).

30000319 is an equidigital number, since it uses as much as digits as its factorization.

30000319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 30000319 is about 5477.2546955569. The cubic root of 30000319 is about 310.7243519328.

The spelling of 30000319 in words is "thirty million, three hundred nineteen", and thus it is an aban number.