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30053389 is a prime number
BaseRepresentation
bin111001010100…
…1010000001101
32002112212111111
41302221100031
530143202024
62552052021
7513310132
oct162512015
962485444
1030053389
1115a67613
12a094011
1362c3392
143dc4589
152989a94
hex1ca940d

30053389 has 2 divisors, whose sum is σ = 30053390. Its totient is φ = 30053388.

The previous prime is 30053339. The next prime is 30053447. The reversal of 30053389 is 98335003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26316900 + 3736489 = 5130^2 + 1933^2 .

It is a cyclic number.

It is not a de Polignac number, because 30053389 - 215 = 30020621 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30053389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30053339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15026694 + 15026695.

It is an arithmetic number, because the mean of its divisors is an integer number (15026695).

Almost surely, 230053389 is an apocalyptic number.

It is an amenable number.

30053389 is a deficient number, since it is larger than the sum of its proper divisors (1).

30053389 is an equidigital number, since it uses as much as digits as its factorization.

30053389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 30053389 is about 5482.0971352212. The cubic root of 30053389 is about 310.9074658448.

The spelling of 30053389 in words is "thirty million, fifty-three thousand, three hundred eighty-nine".