Search a number
-
+
30318269 is a prime number
BaseRepresentation
bin111001110100…
…1111010111101
32010001022211212
41303221322331
530230141034
63001454205
7515462312
oct163517275
963038755
1030318269
1116128623
12a1a1365
136386b07
144052d09
1529dd2ce
hex1ce9ebd

30318269 has 2 divisors, whose sum is σ = 30318270. Its totient is φ = 30318268.

The previous prime is 30318257. The next prime is 30318283. The reversal of 30318269 is 96281303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17322244 + 12996025 = 4162^2 + 3605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30318269 is a prime.

It is a super-2 number, since 2×303182692 = 1838394870312722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30318469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15159134 + 15159135.

It is an arithmetic number, because the mean of its divisors is an integer number (15159135).

Almost surely, 230318269 is an apocalyptic number.

It is an amenable number.

30318269 is a deficient number, since it is larger than the sum of its proper divisors (1).

30318269 is an equidigital number, since it uses as much as digits as its factorization.

30318269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 30318269 is about 5506.2027750529. The cubic root of 30318269 is about 311.8182051001.

The spelling of 30318269 in words is "thirty million, three hundred eighteen thousand, two hundred sixty-nine".