Search a number
-
+
30330223 = 711235809
BaseRepresentation
bin111001110110…
…0110101101111
32010001221020121
41303230311233
530231031343
63002025411
7515542210
oct163546557
963057217
1030330223
1116136600
12a1a8267
13638c3a1
144057407
1529e1aed
hex1cecd6f

30330223 has 12 divisors (see below), whose sum is σ = 38101840. Its totient is φ = 23633280.

The previous prime is 30330211. The next prime is 30330239. The reversal of 30330223 is 32203303.

It is a happy number.

It is not a de Polignac number, because 30330223 - 213 = 30322031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30330197 and 30330206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30330323) 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 in 11 ways as a sum of consecutive naturals, for example, 17058 + ... + 18751.

Almost surely, 230330223 is an apocalyptic number.

30330223 is a deficient number, since it is larger than the sum of its proper divisors (7771617).

30330223 is a wasteful number, since it uses less digits than its factorization.

30330223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35838 (or 35827 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 16.

The square root of 30330223 is about 5507.2881711419. The cubic root of 30330223 is about 311.8591813295.

Adding to 30330223 its reverse (32203303), we get a palindrome (62533526).

Subtracting 30330223 from its reverse (32203303), we obtain a triangular number (1873080 = T1935).

The spelling of 30330223 in words is "thirty million, three hundred thirty thousand, two hundred twenty-three".

Divisors: 1 7 11 77 121 847 35809 250663 393899 2757293 4332889 30330223