Search a number
-
+
330311213 = 1618320411
BaseRepresentation
bin10011101100000…
…010011000101101
3212000112112210122
4103230002120231
51134024424323
652435414325
711120412311
oct2354023055
9760475718
10330311213
1115a4a7781
12927543a5
135358162b
1431c23b41
151dee9ec8
hex13b0262d

330311213 has 4 divisors (see below), whose sum is σ = 330347808. Its totient is φ = 330274620.

The previous prime is 330311209. The next prime is 330311221. The reversal of 330311213 is 312113033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 330311213 - 22 = 330311209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 330311191 and 330311200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330311413) 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 in 3 ways as a sum of consecutive naturals, for example, 5978 + ... + 26388.

It is an arithmetic number, because the mean of its divisors is an integer number (82586952).

Almost surely, 2330311213 is an apocalyptic number.

It is an amenable number.

330311213 is a deficient number, since it is larger than the sum of its proper divisors (36595).

330311213 is a wasteful number, since it uses less digits than its factorization.

330311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36594.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 330311213 is about 18174.4659618928. The cubic root of 330311213 is about 691.2594884394.

Adding to 330311213 its reverse (312113033), we get a palindrome (642424246).

The spelling of 330311213 in words is "three hundred thirty million, three hundred eleven thousand, two hundred thirteen".

Divisors: 1 16183 20411 330311213