Search a number
-
+
330233213 = 2579128047
BaseRepresentation
bin10011101011101…
…111010101111101
3212000101120210202
4103223233111331
51134014430323
652434013245
711116636022
oct2353572575
9760346722
10330233213
1115a454112
1292717225
1353554c8b
1431c03549
151ded1d28
hex13aef57d

330233213 has 4 divisors (see below), whose sum is σ = 330363840. Its totient is φ = 330102588.

The previous prime is 330233209. The next prime is 330233221. The reversal of 330233213 is 312332033.

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.

It is a cyclic number.

It is not a de Polignac number, because 330233213 - 22 = 330233209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330233203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61445 + ... + 66602.

It is an arithmetic number, because the mean of its divisors is an integer number (82590960).

Almost surely, 2330233213 is an apocalyptic number.

It is an amenable number.

330233213 is a deficient number, since it is larger than the sum of its proper divisors (130627).

330233213 is a wasteful number, since it uses less digits than its factorization.

330233213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130626.

The product of its (nonzero) digits is 972, while the sum is 20.

The square root of 330233213 is about 18172.3199674670. The cubic root of 330233213 is about 691.2050726010.

Adding to 330233213 its reverse (312332033), we get a palindrome (642565246).

The spelling of 330233213 in words is "three hundred thirty million, two hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 2579 128047 330233213