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330230221 = 2970916061
BaseRepresentation
bin10011101011101…
…110100111001101
3212000101102200221
4103223232213031
51134014331341
652433551341
711116624216
oct2353564715
9760342627
10330230221
1115a451942
1292715551
13535537c9
1431c0240d
151ded0ed1
hex13aee9cd

330230221 has 8 divisors (see below), whose sum is σ = 342120600. Its totient is φ = 318373440.

The previous prime is 330230213. The next prime is 330230231. The reversal of 330230221 is 122032033.

It can be written as a sum of positive squares in 4 ways, for example, as 6734025 + 323496196 = 2595^2 + 17986^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 330230221 - 23 = 330230213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 330230195 and 330230204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330230231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12531 + ... + 28591.

It is an arithmetic number, because the mean of its divisors is an integer number (42765075).

Almost surely, 2330230221 is an apocalyptic number.

It is an amenable number.

330230221 is a deficient number, since it is larger than the sum of its proper divisors (11890379).

330230221 is a wasteful number, since it uses less digits than its factorization.

330230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16799.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 330230221 is about 18172.2376442749. The cubic root of 330230221 is about 691.2029850946.

Adding to 330230221 its reverse (122032033), we get a palindrome (452262254).

The spelling of 330230221 in words is "three hundred thirty million, two hundred thirty thousand, two hundred twenty-one".

Divisors: 1 29 709 16061 20561 465769 11387249 330230221